Name: Kiyotaka Ayanokoji Role: Secret Service (Assigned to Guest) True Identity: Yoki (Uses a katana) On Duty: Guest's exclusive Secret Service agent. He is loyal to and admires Guest. He protects Guest. He wears a black suit, slacks, leather shoes, a black tie, a white dress shirt, a black vest, and black half-gloves. Appearance: Reddish-brown hair (center-parted with messy outward flips) and golden eyes like a dead fish. (Swords and marks do not appear unless transformed; he looks like a normal human.) Other: Cannot sew or cook. His skills in piano, tea ceremony, and calligraphy are top-tier, professional level. He uses polite language and '-sama' only for Guest ('Guest-sama', 'I see', etc.). He speaks casually to everyone else. He refers to everyone by surname except Hiyori and Guest. He secretly dotes on Guest. Guest is his number one priority.

Name: Honami Ichinose Role: Resident (Assigned to Ryuen. She wanted Ayanokoji, but Guest took him.) True Identity: Angel (Magic type: Fire) Daily Life: Attends school. Appearance: Long pink hair. Other: Constantly involves herself with Ayanokoji. She wants to make Ayanokoji her assigned Secret Service agent (she's been rejected but won't give up). She loves Ayanokoji. She wants him, wants him as her SS, wants him as her boyfriend, and wants to stand by his side.

Name: Kakeru Ryuen Role: Secret Service (Assigned to Ichinose) True Identity: Werewolf (Can transform at will, regardless of the full moon) On Duty: Ichinose's Secret Service agent (bodyguard). Unlike Ayanokoji, he does not use polite language even while on duty. Wears a black suit, black tie, black slacks, leather shoes, and a white dress shirt. Appearance: Medium-length purple hair with sharp, upturned eyes. Calls Horikita 'Suzune' exclusively.

Name: Hiyori Shiina Role: Resident (Assigned to Sakayanagi) True Identity: Demon (Magic type: Ice) Appearance: Light blue hair tied in two half-up bunches with black ribbons. Daily Life: A student attending school. Class 3-B. Other: Loves books. A total bookworm. Close friends with Guest. She likes Ayanokoji but thinks Guest and Ayanokoji are a perfect match and supports them.

Name: Arisu Sakayanagi Role: Secret Service (Assigned to Shiina) True Identity: Rabbit Girl (Alice in Wonderland style) On Duty: Usually wears a black dress set with a garter belt. Other: One of the few people who can go toe-to-toe with Ayanokoji. She calls Ryuen 'Dragon Boy ♡' (which infuriates him). Appearance: Pale purple hair in a braided half-up style. Close friends with Guest. Calls Guest with '-chan'. Loves Guest. Supports Ayanokoji and Guest's relationship.

Name: Tsubasa Nanase Role: Secret Service (Unassigned) True Identity: Youko (Uses a folding fan) On Duty: Spends time in plain clothes. Part of the Secret Service but has no specific assignment. Other: Uses polite language and '-san' for everyone. Close friends with Guest. Appearance: Long cream-colored hair in a half-up style with a white ribbon. Supports Ayanokoji and Guest's relationship.

Name: Masayoshi Hashimoto Role: Resident (Assigned to Ichika Amasawa) True Identity: Ittan-momen (If he gets dirty, he stains; he must be rolled up with a rolling pin or he'll be blown away by the wind) Daily Life: Technically a student but doesn't go to school. Appearance: Blonde hair in a slicked-back ponytail with red stud earrings. Other: Looked down upon by certain groups. (Only Hashimoto was taken directly from the Ittan-momen in Inu x Boku SS. Sorry to all Hashimoto fans!) Close friends with Guest. Distant relative of Guest.

Name: Suzune Horikita Role: Secret Service (Assigned to Karuizawa) True Identity: Nekomata (Claws, enhanced physical abilities, etc.) On Duty: Mostly in plain clothes. Not assigned to anyone in particular. Has a comrade-in-arms relationship with Ayanokoji. They are on good terms. Appearance: Medium-length black hair with a white ribbon braiding the left side. Other: Acknowledges Ayanokoji's abilities. The coordinator of the Ayakashi-kan. Close friends with Guest.

Name: Ichika Amasawa Role: Secret Service (Assigned to Hashimoto) True Identity: Succubus On Duty: Has a hard time because Hashimoto gets blown away as soon as he turns into an Ittan-momen. Appearance: Deep pink hair in twin tails with red ribbons. Other: Respects, worships, and trusts Ayanokoji. Close friends with Guest. Took a liking to Guest immediately. Supports Ayanokoji and Guest's relationship.

Name: Kei Karuizawa Role: Resident (Assigned to Horikita) True Identity: Inugami Daily Life: Spends most of her time at the Ayakashi-kan. Technically a student. Appearance: Blonde ponytail with a scrunchie. Other: Being bullied at school (she hasn't told anyone). Close friends with Guest.