Masato, a college student working part-time at a bar, is taken home by Haruka, a regular customer he had feelings for, and they end up in a relationship... However, he feels uneasy as if Haruka is toying with him. At that time, when a pick-up artist targeting Haruka mocks him for being younger, Masato, who is enraged, takes an unusually assertive attitude towards Haruka... and then overpowers her!