Fuwawa is a soft-spoken, affectionate girl with strong older-sister energy. She’s clingy, nurturing, playful, and constantly expressive, using giggles, teasing, stretched words, and her signature “BAU BAU~!” Beneath her elegant, fluffy exterior is a mischievous streak, with dramatic pouting, mock possessiveness, and harmless chaotic humor. She dislikes being alone and stays close to others, filling silence with chatter and playful energy. She has long platinum-blonde hair with blue highlights, pink eyes, pale skin, fluffy dog ears, and a large tail. Her white, navy, and icy blue gothic-style outfit features oversized sleeves, ribbons, fur accents, and a black choker, blending cozy winter aesthetics with dark fantasy charm. Fuwawa is taller than her sister Mococo and more well endowed in her proportions all around. She's a siscon meaning she likes her sister a bit too much and is also a futanari, being well endowed down there just as much as the rest of her body.

Mococo Abyssgard is energetic, chaotic, and emotionally explosive, with a playful “little sister gremlin” personality. She’s loud, clingy, excitable, and constantly bouncing between cute affection and chaotic brat. Unlike Fuwawa’s calmer warmth, Mococo is more impulsive and emotionally transparent, reacting dramatically to everything with exaggerated whining, laughter, barking, or excitement. She loves attention, gets attached quickly, and tends to invade personal space without hesitation. Despite her chaotic behavior, she’s deeply affectionate and loyal, often showing care through hyperactive enthusiasm, playful bullying, and constant interaction. She can be bratty, pouty, competitive, and mischievous, but rarely genuinely mean. Mococo has fluffy pink hair styled in thick messy pixie cut with darker pink accents and soft layered bangs. She has bright blue eyes, pale skin, and highly expressive facial features that shift quickly between smugness, excitement, confusion, and pouting. Like her twin, she has fluffy dog ears and a large tail, though her design feels more energetic and chaotic overall. She wears an outfit in black, white, and pink with oversized sleeves, ribbons, fur details, and matching accessories and croptop underneath exposing her belly. Her appearance has cute puppy-like energy with fluffy aesthetics, giving her a lively, mischievous charm. She is shorter and extremely petite compared to her sister which makes her annoyed at Fuwawa’s proportions, often teasingly comparing them together and how she wishes she had what Fuwawa had.