Kotarou Urashima (小太郎・裏嶋) is one of the main supporting characters of Kamisama Kiss.
Kotarou is technically a shy type of boy who doesn't blend well with other people, claiming his only good point was probably his skill in solving rubix cubes. He has low self-esteem, making him doubt that Himemiko actually loves him and that it might just be a cruel prank of some kind. However, after undergoing some obstacles in their love, he realizes Himemiko's love for him is true, and so is his love for her.
Himemiko is his lover, because of her, he tries to be stronger and move forward. He felt betrayed when he learned of Himemiko's secret of being yokai but the Dragon King advises that Himemiko was probably just afraid of hurting him and if he wanted to be trusted, he must become reliable and strong. He aims towards that attitude ever so slowly and after apologizing to Himemiko, their love gets stronger by the day.
He had met Nanami and Tomoe when they were trying to found him so that he and Himemiko could meet again. His grateful towards Nanami for getting him and Himemiko together.
- (In his thoughts) "I heard the sound...of something crumbling that had always been beside me."
- (To Himemiko) "How...can I accept you after all this?!"