Case Closed Vol. 1 (manga)
Precocious high school student Jimmy Kudo used his keen powers of observation and astute intuition to solve mysteries that have left law enforement officials baffled. Hot on the trail of a suspect, Jimmy is accosted from behind and fed a strange chemical which physically transforms him into a grade schooler! Taking on the pseudonym Conan Edogawa, he attempts to track down the people who did this to him. But until he finds a cure for his bizarre condition, Jimmy continues to help the police solve their toughest cases. Can you crack the case before Conan does?