KAI!! Reiwa's Otokojuku returns! The "Otokojuku" led by Headmaster Heihachi Edajima was once famous for its extreme Spartan education for men. However, that is a story of the past. Housework, childcare, cooking, makeup, social media, etc... "Reiwa's Otokojuku" has now become a school where a new "image of men" is taught, in line with modern values!