The series 'Nocturnal' follows Etu, a timid high schooler secretly in love with his popular classmate, Sayoko. One night, he saves her from harassers, only to discover her shocking secret: she has a dissociative identity disorder. [1, 2] At night, her prim and proper persona is replaced by Yoko, a sexually aggressive and insatiable alter-ego who decides to 'thank' Etu in the most carnal ways possible. The story arc chronicles their escalating encounters, beginning with Yoko's forceful seduction. She introduces Etu to a world of raw lust, dominating him with intense blowjobs until he cums hard, and riding his cock with relentless abandon. Each episode delves deeper into Yoko's depravity and Etu's surrender to his own repressed desires. Scenes graphically depict her performing footjobs, deep-throating his erection, and demanding he fill her pussy repeatedly. Their nights become a cycle of sweaty, frantic fucking, exploring every position as Yoko's perverted demands grow more extreme, pushing Etu's sexual boundaries until he's completely addicted to the nightly debauchery with his classmate's slutty other half.