Kogoro Mouri and Eri Kisaki

Kogoro in school

Kogoro Mouri and Eri Kisaki are a married couple, who have been living separately from each other for a while because a personality clash. Despite being separated, they still love each other, although they will sometimes put on a show of disdain for the other. They were known to be a couple even in elementary school, making them childhood friends. It is a running gag that over the course of a case, one of the pair will come close to asking the other if they could move back in together, but then somehow Kogoro ruins the situation by doing something inappropriate or drunkenly flirting with another woman. Their daughter, Ran, tries to get them to hook up with each other by planning out ways for them to see each other out of the blue.

Kogoro Mouri and Eri Kisaki moments

Manga

Coffee Shop Murder Case

Eri mentions that she would go back to Kogoro if he would just be a little bit nicer and not act immaturely to her.

Caught Up With the Great Detective! Two Murder Cases!

Ran tries getting Eri to help give Kogoro clients.

Scuba Diving Murder Case

In the two-part episode, Scuba Diving Murder Case, Eri accidentally loses her wedding ring on the beach, but pretends to have left it at home to see if Kogoro noticed. She gets visibly angry when Kogoro doesn't appear to notice it, especially when he leaves their lunch early to go back to the beach. Later, it is discovered that Kogoro had always known that she wasn't wearing her wedding ring, and had gone back to the beach to look for it. This left a visibly shocked Eri to drive home speechless, but pleased.

Kogoro Mouri, Suspect

In another episode, Eri actually captures a confession from Kogoro saying that he misses her and wishes she would come back to him on a minidisc, replaying it over and over again afterwards. However, even though they both miss each other, both of them still pretend not to care, and even become incredibly nasty to each other.

Love of Lawyer Eri Kisaki

Kogoro and Eri remember many very important dates in their relationship, and it is found out that she and Kogoro share many things in their minds, including the idea of wearing the outfits both wore on their first date on its anniversary (each of them made this decision independently).

Anime Only

Courtroom Battle: Kisaki vs. Kogoro

Kogoro even goes on the opposing side of a case that Eri is working on, in a plan done by her professional rival Reiko Kujo to try and get under Eri's skin. However, his plan fails, as Kogoro's testimony is able to help out Eri's case instead of Reiko's.

Movies

The Fourteenth Target

In The Fourteenth Target, Eri and Kogoro are shown having a great time eating dinner, but it ends when Kogoro looks out the window and sees the very attractive owner of the bar that he visits. This makes Eri turn angry and act how she normally acts to Kogoro.