Sefure no Senpai THE ANIMATION

Yuuma attends a freshman welcome party hoping to make a good start at university. There, he catches the attention of Nana-senpai, a popular upperclassman who is openly looking for a casual sexual partner. She asks to go back to his house, and Yuuma, confused and inexperienced, agrees.

Once they are alone, Nana-senpai takes the lead, and Yuuma loses his virginity in an encounter that blurs the line between casual arrangement and genuine connection. As their relationship develops, Yuuma must navigate his feelings and the boundaries of their arrangement.