Detective Conan: Case Closed

Jimmy Kudo, a 17-year-old high school prodigy, who frequently helps the local police to solve many mystery cases. During an investigation, he is being ambushed and attacked by two criminals. The duo criminals' code named are Gin and Vodka, from the syndicate known as the Black Organization.

They captured and forced him to ingest an experimental poison, APTX 4869, and leave him to die on the street. Luckily, Conan survive from the tragedy but he'd to deal with a rare side-effect of the poison ---- Transforms Kudo's body into that of a child!

Adopting the pseudonym Conan Edogawa, Kudo hides his identity to investigate the Black Organization. He disguise to be a child. His investigate and try to search enough evidence to apprehend the syndicate, with the hope to find a cure for his current condition.

Edogawa enrolls at Teitan elementary school and forms the Junior Detective League with three other children in his class: Amy Yoshida, Mitch Tsuburaya, and George Kojima. In order to further cover up his activities, he moves in with his childhood friend Rachel Moore, whose father, Richard, works as a private investigator.

Kudo continues to solve criminal cases as Conan, but usually poses as Richard Moore with the help of special gadgets invented by his smart neighbor and friend, Hiroshi Agasa.