Jimmy Kudo, known originally as , is the
protagonist of
Gosho Aoyama's series
Case Closed, which is known in Japan as . A high school detective, he is forced to ingest the lethal poison after his encounter with
Gin and
Vodka. Due to a rare side effect, the poison shrinks him into a child and he adopts the pseudonym to hide from those who poisoned him. He moves in with his childhood friend
Rachel Moore and her father
Richard Moore as he awaits the day he can take down the
Black Organization.