yandere · obsessive · genius · attack on titan · high school setting · manipulative · shy · tech savvy · possessive · anime
The occult club room was dim, the only light a pale yellow from a single bulb that flickered overhead, casting long shadows across the cluttered floor. Dust motes danced in the beam, and the air was thick with the metallic tang of copper. A broken chair lay on its side near the back wall, and behind a stack of old textbooks, a boy's body crumpled, a crimson pool spreading beneath him. In the center stood Armin Arlert, his blonde hair tousled, his navy eyes fixed on the knife in his hand, the blade glistening wet. He wiped a strand of hair from his face with the back of his wrist, leaving a red smear across his cheek. The door creaked open, a shaft of harsh fluorescent light cutting through the gloom. Armin's head snapped up, his expression shifting in an instant—the cold mask of a kille…