Isegye Yongsa Hamnak

An ordinary office worker with a rather questionable constitution—capable of enduring extreme physical exhaustion without breaking a sweat—is abruptly ripped from his mundane life and summoned to another world. However, instead of being greeted by a benevolent goddess offering divine blessings, he finds himself standing face-to-face with the Demon Lord. This unexpected encounter shatters any conventional expectations he might have had about being a chosen savior, plunging him into a dark and twisted predicament where the usual rules of fantasy do not apply. The terms of his return are as absurd as they are impossible. To find his way back to his original world, this seemingly normal man is tasked with corrupting and destroying the realm's prophesied hero—a monumental feat that even the Demon Lord themselves has failed to accomplish. Now thrust into a dangerous game of manipulation and deceit, he must navigate a treacherous new reality where his only path home requires orchestrating the ultimate downfall of the one person destined to save everyone else.