Synopsis

There is only one rule you have to remember... "One master to rule them all!" It's the long-awaited comic for the outstandingly popular demon-training mobile game! When they're selected to be an exchange student at RAD, a school for demons, our protagonist finds waiting for them... Seven demon brothers and a student life at RAD that's shaping up to be a wild ride...! (Source: NTT Solmare)[Written by MAL Rewrite]