You know it's going to be mediocre at best when the author can't even think of an original name for the world and use a real world trademark/brand like "Vantablack". It reminds me of the other manhua with guilds named after german car brands.
Is his character a hidden boss or something (who never unmasked or whatever, hence why he doesn't recognize his identity), and some natural debuff is why the "heroes" keep dying in his presence?