Detective Conan

Jimmy Kudo, 17-year-old high school student, while investigating a blackmail case, is attacked by two members of the Black Organization and is given a newly-developed drug that is supposed to kill him. However, due to a rare and generally unknown side effect, the drug doesn't kill him, but transforms his body into that of a seven-year-old grade schooler.

In order to hide his identity and investigate the whereabouts of the Black Organization, he adopts the pseudonym Conan Edogawa, moves in with his childhood friend and crush Rachel Moore, and enrolls in elementary school. He continues investigating criminal cases with Rachel and her inept private investigator father, Richard Moore. Jimmy also performs investigations through the Junior Detective League (少年探偵団, Shōnen Tantei-dan?), a group he forms with his friends at the elementary school. As the series progresses, so does the relationship between Jimmy and Rachel.

Later in the series, his investigation into the Black Organization catches him in the crossfire between the members of the Black Organization and the FBI and CIA agents that were sent to investigate the Black Organization. As he works to capture the members of the Black Organization and to recover his body with the help of a former member of the Black Organization Shiho Miyano codename Sherry who also took the APTX 4869 poison and got her body shrunk.