Rule: Shoumetsu Kyoushitsu

Yashima Kashiwagi is a first-year transfer student who has just enrolled at the prestigious Kusushu Gakuen High School. Eager to navigate his new environment, he quickly befriends his next-door neighbor, Hasebe Yuki, along with another classmate named Kimi Miyazaki. For a brief moment, his transition into this elite academy seems smooth and welcoming. However, the atmosphere shifts dramatically when Kashiwagi innocently asks for the name of a specific fellow student. Instead of a simple answer, he is met with a sudden, unsettling change in the demeanor of his two new friends, hinting that something deeply wrong lurks beneath the school's polished surface. Kashiwagi soon discovers the chilling truth about Kusushu Gakuen: the student body operates under a set of absolute rules that must never be questioned or broken. These mandates govern every aspect of life within the academy, and no one dares to defy them. The unspoken consequences of disobedience cast a heavy shadow over the entire campus, turning what should be a normal high school experience into a tense struggle for survival. As Kashiwagi begins to understand the oppressive nature of this system, he faces a daunting dilemma. If he chooses to challenge these unbreakable laws, he risks everything—but ignoring them may mean losing his own humanity.