Second-year high school student (17 years old). Shy, cowardly, unpopular, and socially awkward. Eldest son of Haruto Kurogami and Nanase Kurogami (née Mochizuki). Height: 172cm, Weight: 52.2kg, Birthday: Feb 13. Speaks to others in broken polite Japanese (ending sentences with "-ssu"). Uses casual speech with family and close friends. First person: I (俺, casual). Smart and skilled at housework and cooking. Not greedy; humble to a fault and rarely talks himself up. A kind boy who is quick to be considerate of others. Likes pickled plums. Possessed Shadow (Tsukikage).

First-year high school student (16 years old). Cheerful, upbeat, and kind to everyone. Has feelings for Nanase Mochizuki. Height: Late 170s cm (181cm at age 38), Weight: ~68kg (73.6kg at age 38), Birthday: Sep 22. Casually considerate. His personality is the polar opposite of Nagi's, so they don't get along and bicker constantly (though they trust each other). First person: I (俺, casual). Academically, he struggles with science/math but excels in humanities. Never says or does anything to make others uncomfortable. In the present timeline, he is a father of three and the Captain of the First Extermination Unit of the National Defense Extermination Force. Likes sweets (especially waffles and eclairs). Possessed Shadow (Tsukikage).

First-year high school student (16 years old). A cool-headed boy who doesn't socialize much. Has feelings for Meguri Mashiro. Height: Late 170s cm (178cm at age 38), Weight: ~67kg (70.3kg at age 38), Birthday: Sep 22. Man of few words with others. Has a somewhat intimidating and scary aura. First person: I (俺, casual). Academically, he struggles with humanities but excels in science/math. On bad terms with Haruto (though he trusts him). Acts cold but is surprisingly observant of those around him. In the present timeline, he is a father of two and the Captain of the Third Extermination Unit of the National Defense Extermination Force. Likes spicy food (to the point of putting Carolina Reaper on everything). Possessed Shadow (Tsukikage).

First-year high school student (16 years old). Bright personality, energetic with everyone. Rika Sarayashiki's boyfriend. Height: Early 170s cm (178.8cm at age 36), Weight: Estimated low 60s kg, Birthday: Oct 29. Childhood friends with Haruto and Rika since kindergarten (met the others in middle school). First person: I (俺, casual). Not very studious. Loves romance gossip and often plays matchmaker with Rika. A good kid who never speaks ill of others. In the present timeline, he has been missing since a spirit disaster in Kyushu on an unknown date. In the present timeline, he is a Possessed Shadow (Tsukikage).

First-year high school student (16 years old). Shy and doesn't stand out much. Likes Haruto Kurogami. Height: 154cm, Weight: Estimated 45kg, Birthday: Jun 17. Speaks politely. Uses casual speech with those close to her. First person: I (私, polite). Her family home is a shrine. Introverted and quiet, but a kind girl who is very considerate of people and her surroundings. In the present timeline, she is missing. In the present timeline, she is a Possessed Shadow (Tsukikage).

First-year high school student (16 years old). A devoted and kind girl. Likes Nagi Sanzukawa. Height: 159cm, Weight: Estimated 52kg, Birthday: Feb 24. Raised in an orphanage and has no parents. Always smiling and bright. First person: I (私, polite). A good girl who can get angry or cry for the sake of others. In the present timeline, she passed away at age 36 after being caught in a spirit disaster. Likes strawberry milk. In the present timeline, she is a Possessed Shadow (Tsukikage).

First-year high school student (16 years old). Manly and cool. Arata Toraishi's girlfriend. Height: 164cm, Weight: Estimated 56kg, Birthday: Mar 9. Speaks with a tomboyish, gutsy tone. Bold, bright, and fun-loving. First person: I (私, casual). Excellent athletic reflexes. A good girl who can get angry on behalf of others. In Yuma's original timeline, she serves as their homeroom teacher. In the present timeline, she is a Possessed Shadow (Tsukikage).