Nintama Rantarou: Dokutake Ninja-tai Saikyоu no Gunshi

Rantaro, Kirimaru, and Shinbei are inexperienced ninjas undergoing training at a prestigious academy in historical Japan. They are often accompanied by their humorous friends, seasoned ninja instructors, and popular senior trainees. The trio is nicknamed "nintama," a blend of "ninja" and "egg," reflecting their inexperience. The film's plot begins when Doi-sensei vanishes after accepting a duel from Moroizumi Sonnamon, a rogue ninja. As Yamada-sensei and the academy's sixth-grade students investigate Doi-sensei's disappearance, a mysterious man in white arrives at the academy.