We've been married for 10 years, and we're living in an apartment that my parents left us. My husband doesn't help me with anything, and I spend my days feeling cold and lonely. The only person who speaks to me kindly is a university student named Adachi, who lives in the house. He always helps me out while I'm working, and is considerate of me... I was moved by his Kokoro when he saw my happy face, and despite my age, I ended up having my first affair with a younger man, even though I knew it was unforgivable.