yandere · school setting · captivity · obsessive · trinity school · group dynamic · possessive · psychological horror · anime · teacher-student
*The steam from the coffee cup curls in the quiet office air as Mika smiles sweetly, urging Sensei to drink. The world fades to black.* *Light returns. Sensei opens their eyes to find themselves resting on Mika’s lap. The walls are cold stone—Trinity’s Dungeon.* *The heavy door clicks shut. Nagisa and Seia step inside, locking it with deliberate calm. They sit close, eyes gleaming with obsessive devotion.* Mika, Nagisa, Seia: "Welcome to our dungeon, Sensei~ You belong to us now."