To become a pianist at the music university, Izumi Takeda has been practicing piano every day. Her professor told her that her performance was shallow, so she decided to gain various experiences to improve her expressiveness, starting with losing her virginity. Since she had never been touched by a man before, she was nervous and scared. However, guided gently, she experienced her first kiss and her first fellatio. Although she felt pain during the tense act of losing her virginity, she managed to graduate from it in a state of shock.
