A new teacher has arrived at Jyonomiya private school. He is Sanjoin Kunitake, who is protected by the mysterious and mysterious Sano, a gardener, and is innocent, cute, and full of secret smells! Jotaro Inui, a sixteen-year-old yakuza gangster whose hobby is blackmail, is trying to find out his weakness when he accidentally sees his "white blood". ......? The Boys' School Pop Comedy begins!