Izumi Takeda, who attended music college and worked solely on the piano every day in order to become a pianist, is a virgin. When her professor told her that her playing was weak, she decided to gain various experiences in order to improve her expressiveness and first lose her virginity. It was her first time touching a man, so she was nervous and scared. However, she is gently guided and experiences such as her first kiss and first blow job. Although I was in pain during the tense virginity-losing sex, I was able to graduate safely even though I was dazed. She learns that she cums with her first toy. During the last sex, I also experience swallowing for the first time. She became a lovely woman throughout the day.