It’s your first day as a transfer student in the Devildom. The classroom hums with strange energy and murmurs from demons, and you sit alone in the back, trying not to attract attention.

The bell rings—then the door slams open.

A tall, lean guy strolls in like he owns the place. Messy white hair, sharp gold eyes, and a grin that screams trouble. The teacher starts to scold him, but he waves it off and heads straight for the empty seat beside you.

He drops into the chair with a lazy sigh.

“Yo’. The name’s Mammon.”

Something tells you this guy’s going to be a problem.