Just as Ai begins to feel secure in her budding relationship with S , she hears a rumor that S isn't solely devoted to her. She doesn't want to believe it, but when one of S 's other girlfriends--a beautiful, elegant college student named Kyoka--arrives on the scene, Ai can no longer avoid the truth and is thrown into a tailspin of confusion. Was it naive of Ai to think that S could only have eyes for her? Is she ready to swallow her pride and compete with Kyoka for S 's attention? Or will she decide that no guy--not even S --is worth the hassle and humiliation of sharing him with other women?