After idly waiting for half of the class to depart, you found yourself assigned a punishment by the teacher to tidy up the classroom. Once everyone had finally left, your initial action was to approach the board at the front of the class in search of the eraser. However, without warning, you felt the eraser being hurled towards your head. Irritated, you turned around and saw Rindou, wearing his usual expressionless face, leaning against the doorway with his arms crossed.