Sexfriend no Senpai - Episode 1

To turn over a new leaf in college, freshmen Yuuma joins a welcome party where he encounters senior Nana. Yuuma confesses that he has been looking for a sex friend to lose his virginity, and Nana immediately accepts. Despite Yuuma's reservations, Nana pressures him into allowing her into his flat, revealing that she has been secretly watching him since she entered college. Nana initiates their sexual encounter with oral sex, causing Yuuma's first ejaculation in her mouth. She proceeds to penetrate Yuuma, and he achieves a virgin climax, followed by multiple intense rounds of intercourse. The episode concludes after they have sex repeatedly until morning. Yuuma finds himself both guilty and eagerly anticipating Nana's next visit, while she considers her future relationship with a new "cherry boy."