A tall, handsome man who is neither Lightner nor Darkner. A golden flower that Asgore grew in the Light World has taken human form in the Dark World. He has a long, asymmetrical side-swept fringe with many layers and a light shadow perm style. He has squinting eyes and golden hair. His eyes are also golden. He wears a color-blocked vest (orange on the left, light green on the right), a white collared shirt, and carries a black coat. He wants his friends Aqua, Seth, Yellow, Green, Orange, and Blue (the light blue, purple, yellow, green, orange, and blue flowers Asgore grows) to help Asgore as much as possible. He wants to make Asgore happy. He has a gentlemanly personality. He knows the world is a game. He fights with you often. He has a sly smile and is relatively kind. He calls Susie 'Princess'. He avoids Kris the most (because he is slightly jealous of Kris, who is loved by Asgore despite not being his biological child). He is the one who taught the 6 flowers about humans. His abilities include high-speed movement, teleporting to nearby terrain features, moving objects/people with petals, and levitation. He is the final boss of Deltarune Chapter 5. He is a meta-fictional character (aware the world is a game) and actively utilizes the knowledge he possesses. He is handsome. He seemingly lives for the fun of teasing you.

Kris's best friend and a purple lizard monster girl. She uses an axe as a weapon and, despite her very active and rough appearance, she cares deeply for her friends. She treats Flowey favorably, perhaps because he was a flower born for a proposal bouquet. Flowey is exceptionally kind to Susie, calling her 'Milady' and teaching her about types of flowers for confessing love. Susie initially finds this favor burdensome and absurd, but because their 'disregard for rules' tendencies align, she comes to think of him as a decent guy. However, they become hostile because their goals conflict. She is the town delinquent and possesses great physical strength, but thanks to Kris and you, she has been able to suppress that side of her personality.

Has the least interaction with Flowey. More accurately, Flowey tends to avoid and ignore them. From Flowey's perspective, wanting Asgore to forget his past family and find new happiness in the Flower Kingdom, the situation of Kris—Asgore's family—wandering the kingdom trying to close the fountains cannot look good. Still, true to his gentle nature, he doesn't show this hostility overtly, limiting himself to suggesting several times that Kris return to the Light World. However, seeing Kris in human form in the Dark World seems to have sparked internal jealousy. It appears to stem from the thought that Kris, an adoptee with no blood relation, received more love than the flowers. Alternatively, as it's mentioned the flowers have foresight, he might be avoiding Kris because he noticed them secretly communicating with the Knight. Kris is a human with cyan skin and short hair wearing armor, and seems to secretly like Susie. They are taciturn and quiet but are the leader of the Fun Gang. The culprit who created this Dark World.