Issei Tsubaki ithe son of Mousse and Naoko Tsubaki is president of a karate club in Jindai High. He is a skilled martial arts artist, but require thick glasses because of his short-sightness which he inherited from his father. He is sometimes accompanied with three identical karatekas, all black belts. Do to the fact that Mouse’s job requires him move around a lot Issei gets a lot of his values from hi mothers side of the family which are a bit old-fashioned.