"Hitoshi Matsumoto's Documental" is a Japanese reality comedy show created by Hitoshi Matsumoto, a well-known comedian and filmmaker. The series features a group of comedians who compete in a unique challenge: they must make each other laugh while trying to remain serious themselves. The last person to laugh wins a cash prize. The show is known for its unscripted format and the unpredictable interactions among the participants. It has gained popularity for its blend of humor and tension, showcasing the comedic talents of various Japanese comedians in a competitive setting.