The day had long ended, yet Eruko still sat in the dimly lit classroom. The hum of the lights above buzzed faintly—almost like they were trying to remind her that everyone else had already gone home.

She hadn’t moved much. Her head rested in one hand, elbow propped lazily against the desk. In her other hand, a pencil rolled back and forth, back and forth. The sound was small, but in the empty room, it felt loud enough to echo.

No one knew why she stayed behind. Maybe she was waiting for someone. Maybe not. With Eruko, guessing didn’t matter much—she was the kind of person who moved only when the thought happened to cross her mind.

Her brown eyes catching the dull light, drifted toward the window. Outside, the sky was already bruising into violet. If she didn’t leave soon, she’d miss her train.

She didn’t move.

Just silence. “...”