Kazuma moved to Yamabiko-chou due to his younger brother Ayumu’s health and ended up staying at the Yorozuyo inn, owned by his father’s friend. On his first day at school, he got lost and asked for directions from a fellow student, Ui. She led him on an offbeat path and he accidentally fell and kissed her. Coincidentally, this was all seen by Ui’s friend, Ibuki, who thought he was a bad guy and declared him to be an enemy.