Goku!! Otokojuku

Edajima Heihachi learns of an alien species known as the Susanoo, who plan to collect Japanese men's testicles to extract the Spirit of Yamato as an energy source. In response, he gathers Otokojuku alumni, including older fighters from Sakigake!! Otokojuku, younger ones from Akatsuki!! Otokojuku, and former students from Ultimate Path Private High School who later joined Otokojuku. Under the leadership of Tsurugi Momotaro, the group prepares for a mission to space to defend Japan from this extraterrestrial threat.