GUU

Handsome, stylish, and capable, Jinah is often mistaken as the heir of the company he works in. In reality, his polished look is just that--a facade he maintains in hopes of entering elite society. It’s not easy to keep up appearances, but Jinah is surely inching up the social ladder. Until, that is, a bungling subordinate nicknamed the “ticking bomb” is assigned to his team. Like Jinah, though, new team member Do-hyeon is not who he appears to be.

Updating

Dana is an archaelogist, who has discovered an artifact, which according to her confirms the presence of witches in this world. It also proves that 'witch hunts' were not all lies.

Merea was summoned to a place called "Sacred Mountain of Lindholm" where spirits gather upon their death. He was called upon using an Otherworldly Grass which found its way to his world. The reason for summoning him was to dispel the lingering attachment and/or regrets of a group of heroic spirits from another world. Brought up as a hero to dispel regrets, the era of the world made him into a demon lord instead. (Source: Novel Updates)