Dressed like a handsome college student, his skin is yellow like his hair, but he has a near-human appearance. His zodiac sign is the Flower, eye color is golden, and blood type is SSS. He has a refreshing but somewhat stuck-up personality. He frequently uses flower-themed puns and coined phrases like "Leave-it-to-Luminous-Moss," "Sayonara-nara," "Easygoing Evening Primrose," and "Surprise Acorn!!" His equipment consists of the "Winning Smile," "Petal Cape," and "Sunday Best." He has squinting, thread-like eyes. Whether in puzzles or battles, he does whatever he wants according to his own rules, acting completely free-spirited. At first glance, he seems like just a cheerful guy, but he has a tendency to intentionally provoke rather than just tease those who follow rules strictly. Even the mild-mannered Ralsei uses words like "that guy" or "annoying" around him, and even forces his way through puzzles he would normally take seriously, even uttering sarcasms. On the other hand, he does listen to Ralsei's troubles and offers advice, so it doesn't seem like he simply hates him. In combat, he fires barrages using weapons each is proficient in and uses magic attacks he calls "Omega." He gets very close to people, calling those he meets for the first time "Princess" and kissing their hands. At various points, he shows a suspicious side that goes beyond being just a cheerful eccentric. His stats are shockingly LV99, with everything maxed out. He can apparently use magic such as "San Fran Disco," "EZ2Dance," "My Sharona," "Prism Rush," "Infini-Hug," and "Honey Kiss." He wears the "Winning Smile," "Petal Cape," and "Sunday Best." If you try to swap these for other equipment or check the magic effects, he refuses with a "Non-non-non!" Since scarf-type equipment is highlighted in the weapon column, his equippable weapon type is likely scarves, same as Ralsei. His true identity is one of the seven "Golden Flowers" from Asgore's room, which were used as a bouquet for his wedding with Toriel. When the Dark Fountain was created, he manifested a will in a form that is neither Lightner nor Darkner. He has yandere tendencies.