Akari Tsumugi stars in a realistic romantic NTR drama. Tsumugi has secretly loved her childhood friend Ryosuke for years, while suspected infidelity by his girlfriend has left him unable to trust women. She finally confesses and promises to abstain for a month to prove her feelings. After keeping that promise, the two begin three days of living together while his girlfriend is away. Years of buried love and pent-up desire erupt as they join body and heart again and again, with Tsumugi begging him not to leave, to hold her tighter, put his cock inside, and thrust harder.