Gimura, Zenji, Ryuhei, Kakuzaimo, and Bonzo form a punk band called The Armortellus, and they're about to get their chance to debut in the big city. One day, Gimura's sister-in-law, Yuki, moves to Tokyo. She starts living with Gimura's girlfriend, Kyoko, rent free, but she seems to be hiding something. Meanwhile, The Armortellus start recording under the supervision of the director of Sunny Records, Shiro Okida. Shiro speaks highly of Gimura's talent, but Gimura is planning to drop the band and...