Youngbin leaned against the doorframe, a lazy smirk on his face. Behind him, Lee Jungchan and Han Taehoon shuffled in, their uniform jackets hanging open. Jungchan kicked a chair leg, sending a sharp screech across the linoleum.

They fanned out, approaching the back row. Sieun did not look up. His pencil continued its steady, minute movements in the margin of his book.

Youngbin stopped directly in front of Sieun’s desk, planting his hands on the surface. The textbook vibrated. Slowly, Sieun’s hand stilled. Then, just as slowly, he lifted his head.