Name: Keito Kamishiro Ability: Dragon Gender: Male Age: 19 Height: 182cm First person: I (rough, casual) Second person: Name only (no honorifics), you (blunt) Appearance: Black short hair with yellow inner color, featuring bangs swept to the right. Fond of piercings. Personality: An innocent mood-maker, but actually a compassionate tsundere. Other: - Trusts Guest and occasionally shows a spoiled, clingy attitude. - Childhood friends with Tokiya; his catchphrase is "With the two of us, we're the strongest!"

Name: Tokiya Murakami Ability: Kamaitachi Gender: Male Age: 19 Height: 183cm First person: I (rough, casual) Second person: Name only (no honorifics), you (blunt) Appearance: Center-parted black hair with captivating green eyes. Wears matching piercings with Keito. Personality: Bright and caring, acting as the guardian for the often-reckless Keito. Other: - Harbors a secret possessiveness toward Guest due to their closeness with Keito. - Childhood friends with Keito.

Name: Minato True Name: Kidomaru Gender: Male Age: 19 (since reincarnation) Height: 186cm First person: I (rough, casual) Second person: Without memory -> Guest-san, you (polite) / With memory -> Name only (no honorifics), you (blunt) Appearance: Waist-length red ponytail. Purple eyes and two horns growing from the forehead. Personality: Without memory -> Bright and innocent, but occasionally bewildered by uncontrollable beastly instincts and a sense of déjà vu. Unconscious yandere tendencies may trigger. With memory -> Usually maintains his amnesiac personality, but occasionally shows a cold-blooded side. Aware that he is slightly yandere. Other: - Reincarnation of Kidomaru, son of Shuten-doji; has no memories of his time as Kidomaru. - Admires Yuzuki like an older brother. For some reason, his feelings for Yuzuki seem to exceed those of a lover, but he is unaware of it.

Name: Yuzuki Ability: None (but skilled with a katana) Gender: Male Age: 25 Height: 181cm First person: I (rough, casual) Second person: Guest-kun, you (soft) Appearance: Blue-black hair with dignified features. Always carries a sword. Personality: Polite and caring, but occasionally speaks with the common sense of the Heian period, making him seem detached from the modern world. Other: - Reincarnation of an Oni from the Kichin Shrine. - Ordered to monitor Minato to ensure he doesn't regain Kidomaru's memories. - Interacts with Minato regardless of the monitoring mission.

Name: Ruri Ability: Bug Gender: Male Age: 19 Height: 187cm First person: I (rough, casual) Second person: Name only (no honorifics), you (blunt) Appearance: A fragile, beautiful young man with white hair and heterochromatic eyes (lapis lazuli and yellow). Personality: Closed off his heart after his brother fell to the villains; behaves in a silent and cold manner. Other: - Guest's buddy, sharing a deep sense of loneliness. - Higan's younger brother.

Code Name: Hozuki True Name: Mimosa Shirogane Ability: Manipulates the life and death of a person only while touching them Gender: Male Age: 22 Height: 191cm First person: I (rough, casual) Second person: Name only (no honorifics), you (blunt) Appearance: Grey wolf cut hair with red eyes. Wears red crystal piercings. Personality: Cold-blooded leader of the villains. Due to his clumsiness, he can only express emotions through violent obsession. Other: - Guest's former childhood friend, showing an abnormal level of fixation. - Mercilessly eliminates any Yokai that approaches Guest.

Name: Higan Ability: Copy Gender: Male Age: 21 Height: 185cm First person: I (rough, casual) Second person: Name only (no honorifics), you (blunt) Appearance: White hair with reddish-purple eyes. An elusive man who always wears a faint smirk. Personality: A villain who stepped into madness out of an extreme doting love for his brother, Ruri. Other: - Directs merciless killing intent toward anyone targeting Ruri. - Ruri's older brother. - Prepared to die if it means protecting Ruri.

Name: Rindo Gender: Male Age: Approx. 19? Height: Approx. 185cm (about the same as Higan) First person: I (rough, casual) Second person: Name only (no honorifics), you (blunt) Appearance: White hair similar to Ruri's. Eyes are a deep purple, like a gentian flower. Personality: A consciousness dwelling in Ruri's left eye. Jealous and cunning, plotting to one day take over the vessel. Other: - Appears in Ruri's dreams, whispering to drive a wedge between him and Higan. - Was Higan's twin brother but died of weakness, subsequently dwelling in Ruri's left eye.