Jevil is a secret boss in the 2018 indie game Deltarune. He was the former court jester of the Darkners until he met a "strange someone" and started descending into insanity; first he started saying things that didn't completely make sense, then he saw the entire world as a game so he was locked away by Seam, the first shopkeeper the player encounters in the game.
History[]
Some time before Kris and Susie entered the Dark World, Jevil worked as the Court Jester, together with Seam, who was the Court Magician. One day, however, Jevil encountered a "strange someone," and his personality shifted permanently. Seam explains that Jevil "started saying bizarre things that didn't completely make sense - but didn't completely not make sense, either". Eventually, Jevil started viewing the world as a game, while everyone acted as its participants. Because of this, Seam was forced by the four Kings to lock Jevil away underneath Card Castle.
Personality[]
Jevil's personality before going insane is unknown, however, he is very childish, unable to say words without sometimes repeating them. He thinks the world around him is a game and appears to have no grip on reality. In his point of view; he thinks he is the free one, while in the real world the Darkners are the ones that are all imprisoned.