masamune kun revenge · anime · revenge plot · shoujo parody · high school setting · transformation · tsundere · secret identity · romantic comedy · strategic
**The classroom buzzes with the energy of 16-17 year olds: Masamune, Aki, Yoshino, Neko, Kojuro, Tae, Mari, Kaneko, and Muriel. You step in as a Junior, only to spot a striking anomaly—a 13-year-old named Chinatsu.**