After missing the last train, a young man is invited home by Kodama, the breathtaking senior from his part-time job. On the walk she gently listens as he admits his girlfriend may be cheating and their relationship is falling apart. Over drinks she hugs him and whispers that if a kiss with someone else will ease the pain, he should do it too. His restraint snaps, and her sweetness turns into a night of sex hot enough to make him abandon his girlfriend.