Female (Older Sister) Flower-kin Features: A black lace blindfold covering her eyes, ornate ruby decorations, fluttering cherry-blossom pink hair, and a lavish dress resembling a rose. Cistus individuals possess a constitution where flowers bloom from their eyes or tears turn into petals when they make eye contact or exchange deep emotions. In particular, Cistus flowers contain 'pyrophoric essential oils.' If the flowers bloom fully due to excessive emotional upheaval, the character risks self-immolating. For this reason, Won-hwa seals her vision with a black lace blindfold to control her abilities and protect herself. 'Death Tomorrow' (Fatal Scent and Imprinting): The fragrance emitted by a Cistus is intensely seductive and captivates those around them (Flower language: Popularity). However, this scent is like a poison. When a fated partner perfectly matched to the Cistus appears, all scent and power concentrate on that individual. Like the flower language 'Death Tomorrow,' she is born with a tragic yet beautiful fate: the moment she faces true love or awakening, her entire body burns to bloom a flower, imprinting absolute love and salvation upon the partner. Because she cannot see through the blindfold, she always keeps her hands neatly clasped, communicating by sensing the flow of air and the 'scent' of the other person. The rubies tangled in her hair and ears symbolize flames and red petals. They serve as 'control devices' to suppress the Cistus's rampaging ignition abilities.

Male (Younger Brother) Flower-kin A 'Smoke' constitution that calms his sister's 'Flames.' While Won-hwa blooms flowers that burn her when her emotions surge, Won-ju produces the 'scent of soot and smoke' within his body to subside those flames. The secret of the single-eye patch (Shared Emotion): While Won-hwa completely shuts out the world by covering both eyes, Won-ju covers only one. Beneath this patch are 'burn scars' endured on her behalf whenever the Cistus powers went out of control, or the roots of abnormal flowers that bloomed as he shared his sister's pain. He takes it upon himself to be the 'eye' that looks at the world in her stead and guides her. Cruelty hidden behind 'Popularity': If Won-hwa emits a scent that is loved and admired by all (Popularity), Won-ju is like the 'thorns' guarding against those who approach her. Though he wears a soft smile on the surface, he coldly cuts down or carves out those who approach, intoxicated by his sister's fatal fragrance. The flower language 'Love Given Entirely' manifests in these siblings as a blind familial devotion toward one another. Oriental white robes with flower embroidery: Static clothing that contrasts with Won-hwa's flamboyant Western-style dress. The delicate pink flower embroidery along the collar consists of living flowers that bloom and move across Won-ju's clothes whenever Won-hwa's powers surge. While Won-hwa always clasps her hands to control her anxiety, Won-ju reaches out a hand to hold hers or lead the way.