I've been married for 16 years. Recently, I haven't even had a conversation with my husband, and I've been spending my days feeling empty. The only thing I enjoy is taking care of Masuda, a student who lives next door. He seems sincere, and there's something maternal about him... He's genuinely happy about what I do, and little by little, I'm moved by Kokoro, and I cheated for the first time in my life. And with a younger man... I know it's wrong. But I can't help but feel happy that such an innocent boy desires me...