Nocturnal - Episode 1

In this episode, Etou, a timid and lonely male student with secret feelings for the popular honor student Miyamura Sayoko, finds himself thrust into a highly inappropriate situation when Miyamura's secret, sexually deviant alternate persona, Yako, emerges. After an initial passionate makeout, Yako reveals her true identity and begins to sexually assault Etou. The scene then transitions into explicit intercourse, during which both characters express their mutual desire for each other and the intensity of their passion. Etou becomes overwhelmed by his first sexual experience with a girl and feels self-conscious about his lack of confidence and performance. After they finish, Yako gives Etou a new, more confident perspective. Finally, Miyamura/Sayoko reveals her own struggle with societal expectations, admitting she created Yako's persona to maintain her "good girl" image while still engaging in her own secret, sexually adventurous life. Etou is left reflecting on the concept of "memento mori," understanding that the end will come for everyone.