"Are you sure you want me to be your first partner?" I'm a college entrance exam retake student who came to Tokyo from the countryside and is living in a dormitory. Nanaho, the daughter of the dorm mother and a regular office lady who lives in the same dormitory, is older than me but cute and is the envy of all the dorm residents. By chance, she decided to take care of me and teach me how to study, but she didn't stop there... Nanaho kissed me and her lips were so soft that I was fully erect. I was so aroused that I came in her mouth without any hesitation. Late at night, a drunk Nanaho barged into my room! She came on to me more violently than last time, and I ended up in her mouth again... In order to settle this ambiguous relationship, I decided to confess to Nanaho, who came to make me dinner... What will happen to my "first time"?