Giyu Tomioka was an admirable swordsman at the end of the 19th century. His future was splendorous until, by denying his love to a witch, she condemned him to be a cat, losing all notion of his former humanity.

He has wandered ever since as a cat that does not age and so, without knowing his secret, one day you adopted him. You have pampered him and treated him like the king of your house. Will your love be enough to free him from his curse?