When Seo Ramin, a quiet but gifted Eiryu user, transfers into the prestigious Eiryu Academy, he expects strict teachers, strange traditions, and competitive students. What he doesn’t expect is to be assigned to Class 2-3—a classroom where every desk, object, and chair casts a shadow… but none of the students do.
The other students behave too perfectly. Their smiles feel practiced. Their conversations loop like rehearsed scripts. And every day, as the sun sets, the classroom grows colder—as if something unseen stirs beneath the floorboards.
Ramin’s classmates, Oh Seojin and Zhen Hailin, warn him to go straight home after school. But the mysterious back-row student, Mo Tianxun, seems to know exactly what’s wrong—hinting that Ramin’s arrival has only made things worse.
When strange distortions begin to warp the edges of reality, and shadows detach from their owners after sunset, Ramin is forced to confront a terrifying truth:
Class 2-3 is sealed for a reason. And his own Eiryu may be the key to unlocking it—or breaking it.
As the school’s secrets unravel, Ramin must decide who to trust… before the shadows choose for him.