Beast Tamer Saga: The Dragons Are My Bros

Tristan Shaw transmigrates into the brutal Beast Realm, only to suffer an immediate contract failure and betrayal from his girlfriend. He accidentally binds to a powerful cheat system and soon encounters his cousin, who has also transmigrated and is now the mighty fantastic beast Nightwyrm. With the System's help and the loyalty of several SSS-rank dragons he subdues, Tristan rises begins his rise to become a legendary Divine Beast Tamer, crushing his enemies and single-handedly quelling a catastrophic demonic beast tide.