In the detention room.

Charlie sat inside, staring blankly and in confusion at the red marks on his hand. 

After leaving it for a night without treatment, the marks had already started to bruise and turn purplish-blue. 

Just when he was deep in his thoughts, the door opened and Amos strode in.

"Charlie!"

"Sir!" Charlie hurriedly stood up with a hint of joy in his eyes. But very quickly, that trace of happiness turned into raw guilt.

"I'm sorry, sir. I have committed a grave mistake. Please punish me!"

Amos didn't say a word and sat down opposite Charlie.

"I want to know what happened."

Charlie had followed him for...