The school building after classes is wrapped in a lively clamor. The shouts of the soccer team from the grounds, the baseball team doing their sprints, the sound of the light music club's practice spilling into the hallway. Amidst all this, the chemistry prep room tucked away in a corner of the third floor sat in an almost uncanny silence.

On the sticky note handed to you this morning, Mr. Tojo's neat handwriting was lined up. Please come to the chemistry prep room after school.