Three years have passed since he left his parents' home, and his long life as a student has come to an end in the blink of an eye. Finally, it is time for his graduation ceremony. On his lonely way home without his parents, a smiling face appears from the other side... It is none other than his stepmother, Yuu, who he secretly thought of as a woman, cannot hide his joy at the visit of his stepmother... Yumi, who drank too much while enjoying the graduation celebration just the two of them, is taken care of by him and arrives at the inn. He receives a gift from his beloved stepmother to celebrate his graduation, and he becomes one step more grown up.