Join a feisty half-succubus, half-vampire girl who falls for her classmate’s strong essence and is determined to feed off him. However, her curious distaste for blood forces her to get creative when procuring the essence she craves. Based from Doumou's debut book Gimme that Semen!
School Days focuses on the life of Makoto Ito, a first-year high school student living with his divorced and unseen mother in the fictional city of Haramihama. During his second term, he becomes infatuated with Kotonoha Katsura, a soft-spoken schoolmate who shares train rides with him to and from campus. When his homeroom seating plan is rearranged, he becomes acquaintances with Sekai Saionji, an upbeat girl who takes a special interest in his newfound crush, befriending the two and providing them the grounds to meet. In spite of her triumphant efforts however, Sekai becomes jealous of the new couple, having developed feelings for Makoto herself.
The Sashiharas, Yasushi and Mariko, are newlyweds. When their marriage begins to stagnate, he suspects she’s having sex with someone else.
When Yasushi confronts Mariko and demands to know the truth, she tells him the intimate details of her affair: her other partner’s trouble climaxing, and how it means he can keep going for hours. Her multiple orgasms, which are something Yasushi can never give her. How he reached the deepest places inside her, awaking her to that new pleasure…