Izumi Takeda, who has been facing only the piano every day to go to music college and become a pianist, is a virgin. I was told by my professor that I was not good at playing, so I decided to gain various experiences to improve my expressiveness, and decided to graduate from my virginity first. It was my first time to touch a man, so I was nervous and scared. However, she is gently led and experiences the first kiss and the first fellatio. The tense virginity loss sex hurts, but I was able to graduate safely even though I was in a state of emptiness.