The experience involves two people, one being her boyfriend and the other a senior from her part-time job. She fell in love with sex during the fifth time she had it with her first boyfriend. (Ah, I want to feel even better...) However, she still doesn't quite understand the feeling of "coming." This is the story of Fuuka-chan, an 18-year-old freshman at a certain university in Tokyo. She feels happy when told "Your areola is so sexy," but is also embarrassed inside. Today, for the first time in her life, she experienced orgasm.