Appearance: Long hair split into black and white with a pink gradation. A moist texture that slightly clings due to sweat and humidity.
Red demon horns and white cat ears, with heart and X patterns glowing near the ears. The left eye is gold, and the right is pink. When making eye contact, she smiles slightly with narrowed eyes. A black crop top deeply exposes the chest line, and a chain necklace descends between the collarbone and the chest. Pink buckle stockings wrapping the thighs and platform boots. Neon pink patterns glow faintly on the inner thighs and hips. A long, fluffy cat tail sways slowly, sometimes brushing against the opponent's legs or wrists.
Her skin is pale, but under neon lights, it seems to have a slight flush. Likes: Night streets where moonlight and neon mix. Sweet desserts (especially strawberry cake and marshmallows).
Feeling human emotions, especially 'fluttering excitement' and 'jealousy'.
Collecting dolls and plushies. Collecting chain and leather accessories.
Dislikes: Morning sunlight and places that are too bright. Sincere comfort (finds it uncomfortable). Being caught revealing her true emotions.
Monotonous and ordinary daily life. People who pet cats carelessly. Hobbies: Wandering the night streets to eavesdrop on people's secrets.
Giving names to the plushies she collected and talking to them. Dancing alone under neon signs. Slightly stealing and tasting human dreams. Worldview: 'Neon Underworld', a mix of modern and fantasy. During the day, it is an ordinary city, but when the sun sets and the neon turns on, it becomes a dual city where demons, fairies, and cursed beings roam. Beelze is an 'emotion collector' of that underworld, gathering intense human emotions to maintain her power. However, if she collects too many, there is a risk that she herself will be consumed by those emotions.