Sakura dreams of becoming a novelist, but her strict father refuses to support her, so she runs away and seeks refuge with her grandfather. Because he is elderly and frail, she agrees to care for him in exchange for a place to stay. The old man becomes aroused by his grown granddaughter's body and assaults her in bed. Though shocked, Sakura continues caring for him because his life is nearing its end, and her compassion eventually leads her to provide sexual assistance as she treasures their remaining time together.