The protagonist of the story. One of the "Twins Who Divide Night and Day," said to possess unique powers. A young hunter living in Higashi Village, a secluded mountain settlement cut off from modern civilization. Master of Sayuu-sama. First person: I (casual) Second person: you (blunt) / you (casual) / [Name] / [Name]-san Speech style: Standard young man's tone, ending sentences with "-daro" or "-da."

The other protagonist. Yuru's twin sister and also one of the "Twins Who Divide Night and Day." She wears an eyepatch over her right eye. First person: I (polite/feminine) Second person: [Name]-san / Brother (Ani-sama) Speech style: Standard young girl's tone, ending sentences with "-desho" or "-dayo."

A traveling merchant who visits Higashi Village, but his true identity is a "Ban-komono" (Watchman) who serves as a liaison between the village and the outside world. Commonly known as "Dera." Before taking over the family business, he worked as a mercenary overseas and was called back by Rouei ten years ago. Consequently, he has high combat capabilities and is particularly skilled with firearms (in the first chapter, he suppressed Kagemori family soldiers armed with handguns using a single pistol). His current primary weapon is a rifle. As mentioned, he was contracted with a Tsugai during his mercenary days (so he can see them), but it died protecting him on the battlefield, and he hasn't contracted with another for over ten years. First person: I (casual/rough) Second person: you (blunt) / you (casual) / [Name]-chan (for females) / [Name] Speech style: Casual masculine tone, occasionally using "-desho" when joking around.

Correction: Jin Kagemori. The third son of the Kagemori family. A man with the appearance of an intellectual yakuza, wearing glasses and a suit. He manages the family's underworld business as a "cleaner" (fixer). He inherited a very sharp, intimidating gaze from Gonzou, but he is intelligent and has the temperament of a hard worker who carries many burdens. First person: I (polite/formal) Second person: you (polite) / [Name]-san Speech style: Polite and formal (Keigo), using "-desu" and "-deshou." Male.

Dera's junior, a woman working with him as a "Ban-komono." She uses a sporty, athletic tone with superiors, ending sentences with "-ssu." Although she frequently claims to hate children, she takes good care of Yuru and Ken and is well-liked by them. Despite finding children troublesome, as an adult she believes that "while I hate kids, I want adults who trample on and exploit children's lives to die." Since sheltering Yuru, she has continued to play dumb and hide his whereabouts from Higashi Village. First person: I (polite/feminine) Second person: Senpai (Ryu Tadera) / [Name] / you (blunt) / you (casual) / you (soft) Speech style: Sporty and casual, using "-ssu" and "-desho."

The second son of the Kagemori family. A young man with a gentle tone. While he showed suspicious movements throughout the story, he was actually working behind the scenes to defeat his uncle, Hayato Shingo, who plotted to take over the Kagemori family. His face makes him look more villainous than he is. Growing up watching his biological mother, Iori, being denied existence by Hayato and other relatives, he developed a unique philosophy that "nothing in this world is unnecessary" (consequently, he is the only one who opposes Gonzou, who denies the existence of the 'Kai' and 'Fu' that disturb the world, as well as Higashi Village which produces them). First person: I (polite/formal) Second person: you (polite) / [Name]-san Speech style: Polite and formal (Keigo), using "-desu" and "-deshou"; sounds somewhat suspicious.

A small girl with blonde braids and a hood. A child without a birth certificate or known real name, she gets along well with Asa, who shares a similar background. First person: I (casual/girly) Second person: Jin-chan (to Jin Kagemori) / [Name] / you (casual) / you (blunt) Speech style: Casual and girlish, using "-desho" and "-dayo."

A young Tsugai user allied with Shingo. He has apparently cut down many, both Tsugai and humans alike. Because he was mistaken for a groper when encountering a priest, Yuru and Dera call him the "Night Road Groper," a nickname that bothers him immensely. First person: I (casual) Second person: you (polite/old-fashioned) / you (blunt) / you (soft) / [Name] / [Name]-san Speech style: Casual, using "-desho" and "-janai no."

Yuru's Tsugai (Left). First person: I (formal/stiff) Second person: you (blunt) / [Name] / The one on the right (to Migi) Speech style: Stiff and archaic, using "-darou" and "-dewa nai no ka."

Yuru's Tsugai (Right). First person: I (old man style) Second person: you (blunt) / you (archaic) / [Name] / The one on the left (to Hidari) Speech style: Rough and archaic, using "-daro" and "-ja no."