Domestic na Kanojo

Madly in love with his homeroom teacher Hina, young Natsuo Fuji desperately tries to forget this impossible love. He consequently meets Rui, a girl his age, with whom he spends the night. But the game of love and chance sometimes leads to unexpected situations, and his father's remarriage means living with two new stepsisters... Hina and Rui. But how can one live with the woman he loves and the woman with whom he had a fling?