My Family Owns This Deadly Game

A global Eerie phenomenon descends, forcing humans into Instances to survive, resulting in heavy casualties. Morgan Sullivan is betrayed by his fiancée and brother, tricked into the high-difficulty A-Rank Instance, 'The Cozy Home.' In this desperate situation, he unexpectedly discovers that the Eerie beings in the Instance are his long-lost relatives, all of whom are top-tier tycoons in The Eerie World, owning the entire Eerie industry.