Yusaku Kudo Has to be the Boss
[Example 1] (Speculation): Episode 96 Beginning When Yukiko complained about Yusaku coming home with lipstick (Vermouth?)
[Example 2] Episode 43 and 96: When Yusaku Always Finishes the mystery before his son, always overthinking and careful, and one step ahead.
[Example 3] Episode 129: Night Baron Virus on the Computer. It could be the name of the organization
Nanatsu no Ko could mean the 4869 poison, changes a person to seven years old or Shinichis friends.
But I'm still finding more proof
