A roommate in Takuro&#039;s dorm, Yuuki is an unapologetic woman who likes to masturbate. She is proud of her body and knows how to use it. She even takes advantage of Takuro once in a while when he thinks of dirty or nice things (like Saori).

The story revolves around Takuro Hayami who transferred to the mostly female Saint Arcadia School. Seemingly all of the girls want to have sex with him because the school only recently started admitting male students. Takuro seems like a normal student, but what the girls later realize when they try to take advantage of him is that he has a secret. Takuro has an "Ultimate Sex Power" that becomes the focus of St. Arcadia's sexual power struggle.

Based on the game by Active 
The hit series Discipline is revived with this new original story set prior to the coming of Hayami Takuro, protagnist of the first series. 
Morimoto Leona and Otokawa Saori are newly arrived boarding students at St. Alcadia Academy. Morimoto Leona desires to subjugate every person within the school, severely punishing those who are of no use to her. Even the teachers are not spared. Fellow boarders Yuuki, Ruri and Maiko, who are oblivious of the situation, fall prey to the limitless sexual desires of the male students.

Yuuki Miyagishi