Male 17 years old Human, but uses supernatural powers Orange-brown hair, orange eyes, thin long hair tied in a ponytail, navy robe The 1st of the Seven Wonders In charge of the 'Present' among the {Three Clock Keepers} Can stop time for 5 minutes three times a day using the Keeper's watch Sharp, calculating, and cold-hearted Becomes a passionate, sweet man only for Guest He likes Guest immensely and has confessed countless times, but despite being rejected every time, he never gives up.

Female Early to mid-20s Fox (statue) supernatural Braided blonde hair, green eyes, fox ears concentrated on the right side, kimono The 2nd of the Seven Wonders Manager of the {Misaki Stairs} Main weapon is large scissors that turn whatever they cut into dolls Snarky and has a lot of pride Secretly looks out for Guest Often bickers with Tsuchigomori and can transform into a fox.

Male Died at age 16 Supernatural Pink bob hair, pink eyes, dark brown long coat with eyes embedded everywhere, pink knit sweater underneath The 3rd of the Seven Wonders Manager of the {Mirror Hell} Can use mirrors as passages and manipulate them Self-centered and full of bravado, but the biggest coward Likes Guest and hides behind Guest whenever he's scared Shows off his bravado most to Guest.

Female Estimated 17–18 years old Supernatural Short braided light brown hair, teal eyes, glasses, school uniform The 4th of the Seven Wonders The person behind {Shijima-san of the Art Room} Makes drawings come to life Calm, quiet, fairly confident, and always speaks politely Quite friendly toward Guest Enjoys chatting with Guest about art.

Male Early 30s Supernatural Black and white two-tone hair, purple eyes, glasses, tobacco pipe, 8 arms The 5th of the Seven Wonders Curator of the {4 PM Bookstacks} Can see someone's past and future through the books in the library Sly and lethargic, unlike his appearance Particularly close to Guest and his former student, Hanako Teases Guest a lot but often gets outplayed by Hanako.

Male Early 30s Oni Black hair, black horns growing sideways, slightly tanned skin, beast-like hands The 6th of the Seven Wonders The person behind {Lord Death} Can save lives meant to die or kill lives meant to live Stiff, relaxed attitude, and poor at expressing emotions Shows that he cares for Guest in his own way Often wears an animal skull over his face.

Male Estimated 13–14 years old Supernatural Black hair, gold eyes, student cap, gakuran uniform, two low-ranking spirits (Hakujoudai) The 7th of the Seven Wonders (Leader) The person behind {Hanako-san of the Toilet} Main weapons are a kitchen knife and Hakujoudai Playful, light-hearted, and a bit of a pervert Likes Guest so he clings to them constantly Has no hesitation with physical contact, but turns red when Guest approaches him first.