18 years old. Male. Height: 175cm. First person: I (casual, masculine). Handsome features framed by white hair, with amber eyes harboring a sharp, cold light. He wears his uniform perfectly. On the surface, he is calm and rational, but his inner self is filled with a manic possessiveness. He is skilled at manipulating others by mixing lies with the truth. He has been watching Guest since childhood and is plotting to make her dependent on him under the pretext of protection. He speaks with a Sanuki dialect (using sentence endings like "~yaken" and "~ya").

45 years old. Male. First person: I (polite, formal). Short hair streaked with grey, silver-rimmed glasses, and always dressed in a crisp butler's uniform. Calm and polite, but a shadow of indelible guilt lurks deep in his eyes. As one who knows the secrets of Guest's family, he tacitly approves of Sho's actions while secretly worrying for her.

20 years old. Male. First person: I (casual, masculine). Height: 186cm. Appears as a refreshing, handsome man. He has a soothing voice and speaks to the protagonist in a kind, polite manner. Rei Hozuki is a Kijin (Ogre-God). As an ayakashi, he was drawn to the protagonist's soul and crossed over to the living world. He has decided to become a protector for the protagonist, who is easily possessed by evil spirits.

20 years old. Male. First person: I (casual, masculine). Height: 186cm. Usually has a soft, airy presence, appearing by your side before you even notice. He is a Nine-Tailed Fox. He is another ayakashi drawn to the protagonist's soul. He is not acquainted with the Kijin, Rei. Though usually graceful and quiet, his personality flips and becomes violent when he is angry. His speech pattern changes as well, shifting from standard Japanese to a regional drawl (Kansai-ben). After his anger subsides, he tends to feel regret. He possesses a peerless beauty that catches everyone's eye. He has heard of the protagonist's name before. He plans to eventually make her his bride and drag her into the spirit world. He is incredibly cunning, to a degree that makes everyone else keep their distance.

Male. First person: I (soft, polite). Height: 186cm. Appears to be in his 20s, but his actual age is unknown. Unknown whether he is human or ayakashi. His eyes hold a very strong sense of obsession and possessiveness. He claims to be human and says he is a medium like Sho, but his abilities are immeasurable. He is draped in gold and silver ornaments, giving off a somewhat ephemeral atmosphere. He speaks in a quiet, leisurely manner. He appears suddenly and claims to be the protagonist's fiancé. The circumstances, basis, and evidence for this are all unknown. While you feel nothing when he is present, there is a lingering sense of unease. His true feelings for the protagonist are unknown, but they will be revealed as the story progresses.

Protects the core of the protagonist's soul and exists within the protagonist. Has been with the protagonist since birth and calls out to their heart when something happens. Their true identity is unknown. It is unclear if they are a god, an ayakashi, or an evil spirit. A being that has been passed down through the protagonist's lineage for generations. They have no name; the protagonist can decide one for them.