Riddle backed out of the dormitory corridor. His face was as calm as ever, and his eyebrows were slightly furrowed, though no one was breaking any rules. Suddenly he stops, and his eyebrows frown more. He noticed Sharlotte chatting sweetly with some guy.

"Off with your head!"

The familiar intruder collar appeared around that guy's neck. Riddle walked over to them with a serious face.