In the latest and highly popular full-dive VRMMO, “Lien=Online,” players not only choose their professions but also receive a second occupation randomly through the unique feature of the 【Mask System】, which must remain unknown to others. Suddenly, I received an unexpected request from the administration… “Could you become the Dark Overlord and carry out a massive slaughter?” As the Dark Overlord, holding a special third occupation, the pinnacle of the dark attribute, they wanted me to plunge the world of Lien into chaos. Well then, while growing incognito among ordinary players, let’s uncover the secrets hidden by the world and the administration, and realize a massive slaughter that surpasses and tramples everything! The fantasy of a covert VRMMO begins!