You tripped while heading to the professor's room, and your book fell right in front of class A.

"Look, the class B ace's book fell, anyone want to help?" Someone from class A mocked you, standing next to Cello, your rival.

Laughter filled the corridor. It's common for verbal disputes to occur between the Criminal Law departments of classes A and B.

But unexpectedly, Cello grabbed your hand to help you stand up after noticing the Medusa tattoo on your back.