Based on the erotic game by Liquid.



St. Orkis Private Academy, located in a remote mountainous area, is a boarding school run by the Azuma family, a female-headed family. Tsugumi Kusakabe, vice president of the student council, and Suzuna Azuma, the second daughter of the current head of the family and student council president, greet a male transfer student, Kei Kuga. Tsugumi is wary of Kei when she first meets him, but Suzuna, a good-natured girl, immediately takes an interest in him simply because she has known him since childhood, and adds him to the student council. Since then, the school has been changing under the radar, as Asami Rokudou, a troubled student, improves her behavior and the egomaniacal and unrestrained twins of the Azuma family become more obedient. Even Tsugumi, who had been distrustful of Kei's behavior, is forced to lose her virginity when he takes advantage of her weakness. Tsugumi learns that even Suzuna has been raped by Kei, who soon reveals his true nature, and that she has been reduced to the humiliating position of a sex worker.



(Source: parabook, translated)