Lim Dae-in, after his 'retirement', is thrust into a world where dimensional gates are about to open, linking Earth with a fantasy realm. He encounters a human trafficking ring capturing a refugee from this other world, prompting him to reveal some of his abilities. His monster hunting video brings him attention from numerous guilds, leading to competitive offers. He eventually agrees to sign with the Whitehouse guild after negotiating favorable terms, highlighting his strategic and business-minded approach. He then proceeds to register as a superhuman and successfully passes the required physical tests.