Birthday: December 29

Kinnosuke is a classmate of Kotoko, Jinko and Satomi, along with his group of friends in class F. They have all been in the same since high school. Being in the same class with Kotoko from the beginning, Kin-Chan (or -San as referred to by friends) developed deep feelings for Kotoko which he was not ashamed to express in every way he could.

Kinnosuke doesn't get his feelings returned from Kotoko and after a while he gives up. But after being confessed to by a stubborn English girl named Christine Robbins, he realizes his own feelings for her and they end up getting married and have three children.