Season 21

Season 21 aired from February 18, 2012 to December 29, 2012.

List of episodes

The following is a list of episodes of Season 21.

Jpn#	Int#	Episode title	Original broadcast	English dub broadcast	Plot	Manga source	Next Conan's Hint
646	-	Deduction Showdown at the Haunted Hotel (Part 1)	February 18, 2012			V73 - F6~8	Elevator
Ran, Sonoko, and Conan meet a strange young man (with Ran's level of martial arts skills) on their way to the Haido Hotel for a free cake buffet. However, soon after they arrive, a man is found dead in the parking lot. Conan reluctantly teams up with their new friend, another high school detective, to solve the case, but there's something strange about him... First appearance of Masumi Sera.
647	-	Deduction Showdown at the Haunted Hotel (Part 2)	February 25, 2012			V73 - F6~8	Paint cans
After investigating the case, Sera tells her deduction. However, she makes mistake in her last sentence on purpose. Unaware Conan makes a deduction via his cellphone using Shinichi's voice. Sera feels something weird about this and decided to investigate more about this. On the next day, Ran and Sonoko is shocked by Sera's present at school as a new transfer girl student. 1) Conan feels that he has met Sera before. 2) Conan feels that Sera made an erroneous deduction on purpose so that Conan would have to call as Shinichi to solve the case. 3) In the last scene, Sera is revealed to be female, as well as a new transfer student in Ran's class.
648	-	The Case of the Besieged Detective Agency (Outbreak)	March 3, 2012			V73 - F9 ~ V74 - F1	Signed books
After school, Sera goes to Kogoro's Detective Agency with Ran and Sonoko. She keeps questioning about Conan and wants to meet him but Conan is at Professor Agasa's house, preparing for a camp with Detective Boys. As she is leaving, three women and a man appears at the agency. The man threaten Kogoro to solve a case with a pistol and bomb. Conan makes a call to Ran's cellphone after the Detective Boys said that they see that Ran walks with an unknown guy. Ran hangs up the cellphone and talks normally. However, Sera takes the phone and close it with a trick so that Conan is still in contact. Sera requests the bomber to tell the case situation again so that Conan can hear as well. However, they were busted after the bomber realizes the trick. However, Conan uses Shinichi's voice to make the bomber trusts him. Sera shows interest in learning about Conan and Sleeping Kogoro.
649	-	The Case of the Besieged Detective Agency (Sniping)	March 10, 2012			V73 - F9 ~ V74 - F1	Bush warbler
Conan uses Shinichi's voice to get the bomber to trust him to solve the case,while Ran questions what Shinichi is doing with Conan's phone.The bomber lets out key pieces of information that lead Conan to understand the naming scheme used by the victim and even the identity of the murderer,but Ai tells Conan that even though he tells the bomber the name of the culprit there would be two people who would be killed at the detective agency since the bomber planned a murder-suicide.Sera explains to Ran why she left the phone connection on she believes Conan would help with the investigation.The police snipers SAT and SIT are called in to make an assault on the bomber.
650	-	The Case of the Besieged Detective Agency (Release)	March 17, 2012			V73 - F9 ~ V74 - F1	Toilet
Shinichi exposes the identity of the "Rat" as Mitsui-san,but before the bomber can do anything to Mitsui-san Shinichi clarifies that he did say she was the rar but he did not say that it was Mitsui-san who killed her.Shinichi resolves the case;he tells the bomber that it was indeed that his sister committed suicide shocked from the deduction, the bomber looses his cool and is tackled by Ran and Sera,the SIT also breach the scene and subdue the bomber.All's well that ends well.Or is it really over? Conan realizes that Sera is female.
651	-	Conan vs. Heiji, Deduction Battle Between the Detectives of the East and West (1 Hour Special)	March 24, 2012			V74 - F5~7	Kansai dialect
Heiji and Kazuha have come to Tokyo to visit Ran, Kogoro, and Conan. When they are taking the public bus to the detective agency; Kazuha sees the restaurant that is famous for it's curry and remembered that her mother wanted her to get some to bring it back to Osaka. She goes to the restaurant while Heiji heads for the agency. When he arrives there and meets with Conan, Ran, Sera, and Kogoro he gets a call from Kazuha saying that she needs help and cannot leave the restaurant because there was a murder. Sera suggests that Heiji and "Shinichi" through Conan should have a deduction batter to see which detective is better; East or West. 1) When Conan gets that "look" after figuring out the culprit's identity, Sera looks at him, unsurprised, and thinks, "We have a winner." (Conan does not notice.) 2) Agent Camel gets the feeling that he's met Sera before, so he takes a picture of her (with only the side of her head showing) and sends it to Agent Jodie and Agent James Black. Jodie says she has the same feeling about "him", but Black says he has never seen "her" before. When Camel asks how he knew Sera was female, he responds "wise man's intuition".
279	-	Hooligan's Labyrinth (Part 1) (Remastered)	April 7, 2012			V34 - F5~7	Ticket
Conan, the Detective Boys, Haibara, and Agasa, are all watching a soccer game involving the Tokyo Spirits and Noir. The game is a thrilling sudden death game with an exciting finish! However, somewhere in the stadium, lurks a man holding a rare knife... While everyone walks out of the stadium, they see on a store television, a game involving the Osaka team, Haibara takes special interest in a certain player on the team, Higo, because his situation in soccer closely mirrors, to her, her situation with the Black Organization, though she never admits this. He is considered a "traitor" by fans, for going from one team to another, and even fans of his own team boo him when he makes errors. While Haibara and the Detective Boys are focused on the game, Conan asks Agasa about if he has new information on Sharon Vineyard, and learns that a famous japanese actress attended the funeral, but no one remembers who it was. While they watch the game on the TV, they spot a man known as a "Hooligan," a man who takes pride on starting trouble and riots in soccer matches. While everyone (Including is on a train packed with Noir and Tokyo supporters, the hooligan is found murdered, stabbed inside of the train. Inspector Megure and Detective Takagi arrive on the scene. Conan is able to narrow the suspects down to three people, but can he solve the case? And where did Haibara go? The last scene of the episode shows her walking away from everyone... First appearances of Ryusuke Higo. Takagi starts to question Conan's intelligence by asking him directly "How are you deducing like that?".
280	-	Hooligan's Labyrinth (Part 2) (Remastered)	April 14, 2012			V34 - F5~7	Goal scene
Conan spots Haibara watching the big screen TV, eyeing Higo and how he is doing. Conan tells Haibara Higo's real intentions for switching teams. Thanks to this, Conan has an idea and now can solve the case! Conan, with the help of Agasa, is able to solve the case and confront the criminal, whom committed the murder as an act of revenge against the heartless hooligan. While the man is being taken away, the Detective Boys notice that Haibara is on the other side of the train station, near a different train. Conan believes that she may be running away, due to the many odd comments she has made throughout the day, about being a traitor! Conan races to find Haibara, only to believe that it is too late... until Haibara walks up to him and explains that she was trying to find Mitsuhiko's radio, that he had accidentally dropped during the hysteria that occured when the man was murdered. Haibara feels an emotional connection with the soccer player Higo. Haibara ask conan "You'll protect me, right?". Conan answered "Yeah..." This might state something about Haibara's feelings for Conan.
652	-	The Design of Poison and Mirage (EYE)	April 21, 2012			V74 - F8 ~ V75 - F2	Eight equal parts
Continuing from the 1-hour special episode,Heiji receives a mysterious letter from a person who has already died but the letter was something that was posted long after the person has died.The letter invites Heiji to Osaka and encloses a key to the house of the deceased and its address which is in Osaka. And so Heiji,Kazuha,Kogoro,Ran and Conan all go to the victim's house which is in Tokyo,soon after the son of the company president (who had earlier sent the letter to Heiji) is poisoned. First appearance of Sakurako Yonehara.
653	-	The Design of Poison and Mirage (S)	April 28, 2012			V74 - F8 ~ V75 - F2	Tiles
The detectives that have gathered begin investigating the strange manner of this case,while the police also investigates they find that there was no trace of poison in the food or drinks (which cause of the company president's son's death) Conan and Heiji begin their own investigations in the two cases and believe that a serial murderer could be behind these murders and could plan on killing someone else.But then they have a breakthrough in the case through help from some familiar faces which leads to a shocking discovery in the case. Kazuha Toyama learns about Shinichi's confession to Ran in London.
654	-	The Design of Poison and Mirage (Poison)	May 5, 2012			V74 - F8 ~ V75 - F2	Slippers
Continuing from last episode with help from Inspector Yamato in Nagano Heiji and Conan understand that the president was killed by his son and that now that the son has been killed they realize that the one who poisoned the son is not the same person but someone else entirely.As the investigation continues Conan and Heiji make progress in the case.But then even the mistress is killed! Sakurako Yonehara notices Conan has a split personality (he acts both like a normal child and like a detective). Kazuha Toyama learns about Shinichi's confession to Ran in London.(Ran tells Kazuha)
655	-	The Design of Poison and Mirage (Illusion)	May 12, 2012			V74 - F8 ~ V75 - F2	Wristwatch
Conan and Heiji say that they were convinced that it was the mistress who was the culprit until they saw the mistress was dead so they investigate the case further and find clues to who the actual culprit is to the two murders. Heiji learns about Shinichi's confession to Ran in London.And teases Shinichi/Conan about it endlessly. Kazuha Toyama tries to confess her feelings towards Heiji Hattori to him, but he runs away and doesn't listen.
656	-	The Professor's Video Site (Part 1)	May 19, 2012			V74 - F2~4	Glasses' lens
Professor Agasa one day while cleaning his home finds a vase that looks like it is very old so he uploads a video to ask anyone if they can appraise it and tell him how old it is.One afternoon while preparing curry for lunch,later, when the curry gets spoiled everybody except Ayumi and the professor go to the supermarket to buy more ingredients for the curry but Ai,Mitsuhiko and Genta are being followed by someone,as it seems that Ai was on the video site message that the professor had earlier posted;when they try to contact the professor no one is answering;when they reach the professor's home they see the professor had been attacked but Ayumi is nowhere to be found.But then After sometime Ayumi is returned once again and it seems that someone was keeping a watch on the professor's house.Who could it be? Sera asks the Detective Boys about Agasa, Haibara and Shinichi's house, and she sees Okiya sneaking a glance at her from a window.
657	-	The Professor's Video Site (Part 2)	May 26, 2012			V74 - F2~4	Ear
Conan asks the professor if any strangers had come by the house he tells him that 3 groups came by,Ai asks if they talked about a cat a Russian Blue cat by chance? Conan realizes that it was the same type of cat that Ran's mom Eri has,and deduces that someone has switched the rugs. Can Conan find out who kidnapped Ayumi and switched the rugs? Conan realizes that Sera is suspiciously interested in Haibara.
658	-	The Hot Chocolate Trap	June 2, 2012			TV Original	Tablecloth
Conan, Ran and Sonoko were invited to the opening ceremony of "Le trésor de fruits," a chocolate store. During a demonstration of how the opening cermony would be like, suddenly, a fire breaks out. Yukihiko Tsujimoto, the man that Mayuko Sakura was supposed to marry, got killed in the fire. Was this just all an accident or is this actually a case of murder? Sonoko and Ran read about a chocolate which if you eat with the one you like/love you will be together forever; Ran and Sonoko want to eat "Love Romance Chocolate" with Makoto and Shinichi (respectively) Conan/Shinichi with a deadpan look says-"But we are going to eat the chocolate together!"
659	-	Co-Investigating with a First Love (Part 1)	June 9, 2012			V75 - F6~8	Airbag
On their way from watching a movie Professor Agasa, Ai,Conan and the Detective Boys find a car that is filled with toys,upon closer inspection Conan sees signs of someone trying to break into the car he enters it and there is a strong smell of paint-thinners and on the roof of the interior of the car someone has written the word "DIE" in red spray paint,It turns out the car belongs to Detective Chiba,who contacts Yumi to help with the incident,and find out that there have been other cars that have experienced the same incident.Is thee culprit someone from among the 3 victims? Detective Chiba and Naeko Miike investigate a case together.
660	-	Co-Investigating with a First Love (Part 2)	June 16, 2012			V75 - F6~8	Rear window
The rear-ended incident makes the 3 victims the suspects,someone among the 3 is the vandal.Conan asks for the pictures of the cars that had been vandalized, and makes a connection as to how the cars are being targeted.Conan lays out a trap where the culprit will reveal himself. The detective Boys tell Yumi thatDetective Chiba and Naeko Miike are first love of one another and have met again,but Detective Chiba does not remember her, which makes Yumi think about all the relationships in the police department and how she needs to find a boyfriend.Quickly.
661	-	Kogoro-san is a Good Man (Part 1)	June 23, 2012			V75 - F3~5	Key
Ran and Conan ran into a old lady who claims that Detective Mouri has been helping her. Ran is surprised because she couldn't believe he was solving cases for free so they go to the lady's house. They discovered that he is a fake. Also, they got involved in a case that happened at the old lady's building next door.
662	-	Kogoro-san is a Good Man (Part 2)	June 30, 2012			V75 - F3~5	Clothespins
Conan along with Ran and "Faux-goro" (Fake Kogoro) get involved in a murder mystery and realizes that the culprit is someone among the 3 who discovered the body,Conan lays out clues to make "Faux-goro" look good in front of the grandmother but then he discovers that "Faux-goro's" motives may not be good.Just who is this man pretending to be Kogoro? and is he involved the murder?
663	-	Chase the Miyama Stag Beetle	July 7, 2012			TV Original	The name
The Detective Boys wish to capture a few beetles to bring to school, and as a result, visit Agasa's old friend in the mountains. The Detective Boys manage to find a bunch of beetles at night, but return to find Namatame injured. Namatame's last words are "Miyama Stag Beetle" before losing consciousness.
664	-	The Great Dog Coeur's Triumph 2	July 14, 2012			TV Original	Cigarette butt
One night, Hiroshi Yagisawa and his dog, Coeur, discover a body in an underground passageway. The next day, the Detective Boys find a strange map on the back of a piece of paper, with many 'x's at different locations. As the group visits each house, they are able to figure about the meaning behind the 'x's, as well as the identity of the murderer!
665	-	The Suspicious Initial K	July 21, 2012			TV Original	Ant
One night on their way back from a restaurant, Kogoro,Ran and Conan meet an acquaintance police officer.But then they discover a murder that has just occured,they see that the victim has been stabbed and there is a letter "K" that has been drawn by the victim as a dying message;which meant that the killer would be someone whose name starts with the letter "K".Or does the letter "K" mean something else altogether?
666	-	The Rainy Night Menace	July 28, 2012			TV Original	Umbrella
On a rainy evening, Chiba arrives at the Detective Agency to ask Kogoro for help. He wants him to find a woman, Mio, he has met earlier, or else the woman will be in danger. Kogoro, Conan, Ran and Chiba search for Mio in Beika, while a man is found dead in the woman's apartment, Mio standing next to him. Was this self-defense or a premeditated murder?
MKS7	-	The Splendid Rivals (TV Special)	August 4, 2012			MKV3 - C2~3	White horse
At Ekoda Natural History Museum, a purple-eyed gem is believed to be Pandora. Kaitou Kid will not let this chance go in vain. Meanwhile the famous high school detective from London named Saguru Hakuba arrives bearing one goal in his mind, which is capturing Spider. Will Kaitou Kid succeed in getting the gem and finding what he is looking for before The Organization do? Will Hakuba manage to stop Spider and arrest him? First appearance of Saguru Hakuba, Superintendent General Hakuba, and Spider. Hakuba and Kid confront Spider who tries to kill them. Hakuba, later, transfers to Kaito's class after deciding to stay in Japan. At the end, Spider figures out that the current Kaitou Kid isn't the same one from 8 years ago. Akako admires Kid's heroic deed after saving Hakuba's life. Heist: Bronze Statue
MKS8	-	The Secret of the Red Tear (TV Special)	August 11, 2012			MKV4 - C2	Letter
Aoko and Kaito are invited by the head of The Magician Troupe Jody Hopper to see The Hopper Magic Show. However, Jody disdains magic due to her parents' death 10 years ago in an accident during a show. As a result, the show will be the last to be performed on stage. Meanwhile, Snake and The Organization targets the "Red Tear" ruby, which is owned by Jody Hopper. Therefore, Kaito decides to protect the ruby and its owner from The Organization. Later, Kaito meets the magician Paul, who tries to make Jody change her mind and let The Magician Troupe continue. Will Kaito manage to keep Jody and the Red Tear safe from Snake? Will he succeed to help Paul regarding Jody and the troupe? Kaitou Kid faces off against Snake and his lackeys in a showdown for the Red Tear! Hakuba blushes when he sees Akako. Heist: The Red Tear Toichi told Kaito that the grandfather made the jewel for his granddaughter Jody and the secret behind why the jewel is blue and not red like usual rubies.
469	-	Kaitou Kid and the Four Masterpieces (Part 1) (Remastered)	August 18, 2012			V53 - F1~4	Surveillance camera
The owner of a painting fears that Kaitou Kid is after his valuable piece of work. When the moment comes for him to strike, the painting gets stolen, and the man's father is found dead. Kaitou Kid's next heist is made.
470	-	Kaitou Kid and the Four Masterpieces (Part 2) (Remastered)	August 25, 2012			V53 - F1~4	Cell phone
Conan believes that Kaitou Kid has nothing to do with the case. Conan figures out the trick thanks to Takagi and reveals the painting was never stolen. He reveals the culprit set this up for murder and tried to blame it on Kaitou Kid. Afterward the culprit was arrested. Later on Conan meets Kaitou Kid; he revealed he was in disguise to clear his name, who then escapes out the window. Kid appears.
667	-	Wedding Eve (Part 1)	September 1, 2012			V75 - F9~11	Waiter
Kogoro, Ran and Conan are invited to the pre-wedding party of Kogoro's former classmate, but the party ends when the bride-to-be is found burned to death in her car. First appearance of Tooru Amuro.
668	-	Wedding Eve (Part 2)	September 8, 2012			V75 - F9~11	Cake
Kogoro's former classmate is found to be suspicious of murdering his fiancee,Conan tries to figure out how he did it;exposing a sad unwelcome truth in the process. Amuro gets a job as a waiter in Cafe Poirot,Amuro asks to become Kogoro's apprentice and is accepted.
669	-	The Dark Tower's Hidden Treasure (Part 1)	September 15, 2012			TV Original	Mirror
Ran's sempai tells her of a family treasure which she has never been able to find because of which she is now poor,so she invites the Detective Boys to help search for said treasure which said to be in the mysterious black tower.But then someone falls from the tower,but that would be impossible as the tower has no windows or doors.And while the Detective Boys investigate the entrance to the tower which is the key to the case;one by one the members of detective boys disappear.Where could they be?
670	-	The Dark Tower's Hidden Treasure (Part 2)	September 22, 2012			TV Original	Circle and triangle
In order to search for Ai Conan and Ayumi follow the area where Mitsuhiko and Genta fell through but then they realize that they are not the only ones searching for the treasure.Is it the killer?
MKS9	-	The Witch, the Detective, and the Phantom Thief (TV Special)	September 29, 2012			MKV3 - C4
Spider returns to Japan after a show tour in Europe only to have another chance to kill Kaitou Kid. This time's heist will be for The Pink Sapphire exhibited at Ochima Art Museum. As Hakuba is determined to catch Spider this time, he collects enough data about Kid in order to take one step closer to Spider. Therefore, Akako foresees with her crystal magic ball that Kid will be arrested by Hakuba. Akako feels the need to help Kaito, and so she decides to disguise herself as Kaitou Kid. Will Hakuba succeed in catching Spider? Will Akako accomplish her plan by helping Kaito? Moreover, will Spider finish his mission by killing Kid for good? Hakuba manages to discover Kid's identity. Akako, Hakuba and Kaitou Kid encounter Spider, who, at the end, implies to Kid that he knows about Toichi Kuroba's death and his involvements with the organization. Akako shows fear for Kaito and helps him by disguising herself as Kaitou Kid to draw out Hakuba’s suspicion of him. The Pink Sapphire
671	-	Detectives' Nocturne (The Case)	October 6, 2012			V76 - F1~5	Broken cellphone
Kogoro is requested for a job by a client whose face he has never seen,curious about the case Amuro also decides to join him to learn from the investigation,then the meeting place is changed and after waiting for a long time;when they get back to the office Amuro and Conan realize that there is someone hiding in the office bathroom.It turns out that it was where the client was and was being hostage but the captor had committed suicide.But was it really a suicide? Amuro seems to have some kind of connection to Sera.
672	-	Detectives' Nocturne (Kidnapping)	October 13, 2012			V76 - F1~5	Listening device
Amuro along with Kogoro,Ran and Conan accompany to reach the client home.Conan seems suspicious of the client and so enters her home,soon the gang discovers that the client's home has been wiretapped,hearing this the client behaves more oddly seeing which Conan accompanies her as she leaves to go to the supermarket;Meanwhile back in the apartment Amuro,Kogoro and Ran discover a man's body in a suitcase ,Conan is then abducted by Kei-san;and so Professor Agasa,Ai and Subaru also decide to help rescue Conan.It seems the client is not who she is.Who is she?
673	-	Detectives' Nocturne (Deduction)	October 20, 2012			V76 - F1~5	Keep the change
With Conan now abducted;Subaru,Agasa and Ai as well as Sera set out to try to rescue Conan.Meanwhile it seems Conan is alright and then exposes the truth behind all the events that have unfolded earlier. Tooru Amuro notices someone is following his car.
674	-	Detectives' Nocturne (Bourbon)	October 27, 2012			V76 - F1~5	Left-handedness
Conan along with Serina uncovers the identity of the third robber but does not tell her the name because he does not want her to die,he tells her the reason why he came with her and how he knows that she plans to commit suicide once she gets her vengence.So makes a deal with her where he will reveal to her the identity of the third robber if she promises to surrender to the police and confess her crimes and not do anything brash.An action-packed conclusion to this case takes place! 1)Subaru Okiya tells Haibara not to "make that kind of face". 2)Okiya and Amuro stare at each other for a moment. 3)Amuro sees Masumi Sera for the first time, taking some particular interest in her. At the end of the episode Vermouth is talking on the phone with Bourbon. Bourbon could be Subaru Okiya, Tooru Amuro, or Masumi Sera.
MKS10	-	The Reminiscent Golden Eye (TV Special)	November 3, 2012			MKV4 - C5~6	Black cat
On Sunday at 9 o'clock PM, a showdown will commence between Kaitou Kid and Chat Noir; a French thief who seeks the last piece out of seven accessories that were collected by Marie Antoinette for exorcism. Haido City Hotel will witness the challenge between the flashy Kid and the dark Noir. Will Kid succeed in stealing Golden Eye before Noir does and win the bet? Heist: Golden Eye
675	-	Won't Forgive Even One Millimeter (Part 1)	November 10, 2012			V76 - F6~8	Barbecue
Conan,Ai,Professor Agasa and the Detective Boys are invited for barbecue by a couple they met on a camping trip Masumi Sera sees Scar Akai near Mouri's Detective Agency and tries to chase him, but he hides, meaning Sera knows Akai. It is implied that Shinichi/Conan and Sera have met before.
676	-	Won't Forgive Even One Millimeter (Part 2)	November 17, 2012			V76 - F6~8	Cup of water
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677	-	The Footprintless Beach	November 24, 2012			TV Original	Surfboard
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678	-	Nagasaki Mystery Theatre (End of the Edo)	December 1, 2012			TV Original	Font
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679	-	Nagasaki Mystery Theatre (Modern Time)	December 8, 2012			TV Original	Writing order
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680	-	Cactus Capriccio	December 15, 2012			TV Original	Heater
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MKS11	-	The Tearful Crystal Mother (TV Special)	December 22, 2012			MKV4 - C1
This TV Special is a remake of the fourth OVA of Detective Conan with some changes. Kid seeks the Crystal Mother, which is held by the Queen. In this episode, Snake and Spider aboard the same train to get the jewel. Heist: Crystal Mother
MKS12	-	Tears of Love for the Dark Knight (TV Special)	December 29, 2012			MKV4 - C7~8	Riot police member
A very notorious thief, Nightmare, forces Kid to help him get the jewels he desires. First appearance of Shintaro Chaki and Hakuba's Housekeeper Heist: Black Knight

Theme songs

Openings

• Episodes 646-666: Miss Mystery by BREAKERZ
• Episodes 667-680: Kimi no Namida ni Konna ni Koi Shiteru by Natsu Iro

Endings

• Episodes 646-653: Kanashii Hodo Kyō no Yūhi Kirei da ne by grram
• Episodes 654-666: Overwrite by BREAKERZ
• Episodes 667-680: Koi ni Koishite by Mai Kuraki

See also

• Anime
• Staff Listing Season 21