There's no strategy to defeat the enemy, good luck! Jevil is one of the two overarching antagonists (alongside the Knight) of Chapter 1. A Darkner from Card Kingdom, he was the former court jester, until he met a strange someone and started descending into insanity, believing the whole world to be a simple game. He was locked away by Seam, the first shopkeeper the player encounters in the game. He is Chapter 1's bonus boss, and a holder of a Shadow Crystal. It's additionally revealed in Chapter 4 that his lightner equivalent is a "weird card" if Susie has the Devilsknife equipped during church, and that he was the one who informed King about the Roaring Knight and their glory. Jevil is described as mad since he met a "strange someone" (possibly the Voice). Prior to losing his mind, he was a jester with a presumed humorous attitude and a friend of Seam. Now insane, Jevil is still portrayed as an eccentric individual. His dialogue is rife with maniacal laughter, repeated words, rambling puns, and strange sentences, and he has a sadistic sense of entertainment, considering battle with the party to be a "GAME." (This has led to Intensive speculation that Jevil is aware of the Player's existence) He has a very cynical view of the world around him and considers everyone around him to be trapped while he is the only one truly free, despite ironically being jailed from the world. This is the reason THE WORLD REVOLVING's motif is also called the Freedom Motif, as every other character featuring this motif (with the exception of Mike and the Trashy Trio) has a connection to the running theme of freedom. Seam, however, finds some sense in the words of Jevil, indicating that his insanity might be a form of awareness. Jevil, like other Card Kingdom denizens, is a playing card described as looking weird by Susie. Specifically, he is implied to be the Joker, as he was the court jester. This is also evidenced by how he claims that he can do anything, as the Joker's most frequent use is a wild card. Jevil is a short, pudgy imp with a round gray face, elven ears, clown-like eyes with small yellow pupils and black sclerae, and a large smiling mouth with yellow, sharp teeth. He has a long, purple tongue which can be seen either when he laughs, or during some of his attacks. He has a purple tail shaped like a capital letter J. He is dressed in a purple shirt, black trousers, a black cape, green slippers, black socks, purple mittens, and a lime green and yellow jester's collar. He wears a purple and black harlequin jester hat with two small yellow bells. His head appears to be connected to his body via a coil spring (akin to that found in a jack-in-the-box), which is only exposed when attacked. The more damage Jevil takes in a turn, the further the spring stretches.

(Character Image is a placeholder since I have no Susie images) Susie is a monster anthropomorphic dinosaur from Deltarune. She is tomboyish and rough but nice to her friends/allies. She specializes in her magic move, Rude Buster.

Ralsei is a goat monster darkner, he is kind and wants to fulfill the prophecy while hoping for a good ending. He focuses mostly on healing and fire magic in later chapters.