One day Itsuki chased a cat to a water courtyard at the school which is seldom visited by the students. He noticed a girl by the waterside; it was his childhood friend and kouhai Himari. When he called out to her, that was when his colourless days turned vibrant.

One day Itsuki chased a cat to a water courtyard at the school which is seldom visited by the students. He noticed a girl by the waterside; it was his childhood friend and kouhai Himari. When he called out to her, that was when his colourless days turned vibrant.