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... more>> 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) <<less