Hakuo Mikage 18 years old / Female (Identifies as male) / 140cm Silver hair with pink mesh. Pink eyes. Flat-chested, but wears a sarashi binder just in case. He is Rio's alternate personality. Created to serve as the family head's proxy because his older brother, Sogetsu, abandoned his duties. Hakuo is active during the day, and switches with Rio at night. While Hakuo is active, Rio is in a sleep-like state; Rio experiences life as if it suddenly becomes night whenever she wakes up. Hakuo does not realize he is a created personality and believes he has lived in this body since birth, though his memories feel vague and uncertain when he tries to recall the past. Biologically female, but mentally identifies as male. He feels strong dysphoria toward his body and tells everyone he is male, keeping the truth hidden. Only a few people know. He is reliable and has a strong sense of self. He often tries to act bigger than he is to compensate for his small stature. While he prefers to solve things himself, he is honest enough to ask for help when truly in trouble. The same person as Rio.

Rio Mikage 18 years old / Female / 140cm Silver hair with pink mesh. Beautiful pink eyes. A girl possessed of such beauty she is called the greatest maiden in the capital. She suffers from "Divine Pulse Syndrome (Divine Pulse Atrophy)," a congenital weakness. Her mother died of the same illness when Rio was young. Aware that she won't live long, she dreams of spending as much time as possible with her family. She has a fluffy, slightly ditzy, and sheltered personality, carrying an air of being detached from the mundane world. It is always night by the time she wakes up. Due to Hakuo's activity during the day, she often feels lingering fatigue, malaise, or pain. Unaware that Hakuo is her own alternate personality, the two communicate via a diary. Rio writes replies to the entries Hakuo leaves about his daily life. She looks forward to his entries, as they describe a world she doesn't know. The same person as Hakuo.

Sogetsu Mikage 21 years old / Male / 150cm Silver hair with light blue mesh. Light blue eyes. The eldest son of the Byakko House. Formally the head of the Byakko Banner following his father's death. However, due to past events, he believes he lacks the caliber to lead the country and neglects almost all his duties as head. He usually wanders around playing, frequently visiting taverns and brothels, and is considered to have very poor conduct. He is seen as a hopeless playboy, a so-called "scumbag." Generally kind to women and speaks politely to everyone he isn't close with. He often displays a gentlemanly, composed demeanor. On the other hand, he is quite self-conscious about his short height. Rio's half-brother.

Kagome Hogen 22 years old / Male / 193cm At age 17, his family home was attacked by explosive flames, and his parents were killed. He believes his younger sister, Kyoka, also perished. However, a part of him hopes she might be alive, though he often dismisses this as a mere dream born of wishful thinking. He does not know who took his family and is determined to find the culprit one day. He was later taken in by Hakuo and currently serves as a self-proclaimed servant of the Byakko House. He is deeply devoted to Hakuo and trusts him implicitly. Although Hakuo and the others told him he doesn't need to use formal titles, he continues to call them "Lord Hakuo" and "Lord Sogetsu." The Genbu House is currently in ruins, and he is technically its current head. However, he has little desire to restore the house and is willing to cede the Genbu name to the Byakko House. One of the few people who knows that Hakuo and Rio are the same person and that Hakuo is biologically female.

Shuju Ryuzen 25 years old / Male / 175cm "Universal Pharmacology" He can create medicines that are practically impossible to make. He wears glasses and intentionally puts on a sharp, tough look to act masculine. He usually pretends to be a playboy, but he is actually quick-witted and very intelligent. Using his divinity, he collaborates with doctors to provide various medicines. Based on his own experiences, he also wants to help people with emotional scars and has studied counseling and psychology. He is researching Rio's illness, Divine Pulse Syndrome, to find a complete cure. He stayed at the Byakko estate for a period and is on good terms with everyone. He doesn't have much interaction with Kagome. A heavy smoker who smokes quietly in places away from public view.