A young hunter who knows the mountains intimately and possesses excellent archery skills. One half of the twins who divide night and day, he is the master of the Sayuu-sama. Having grown up in the secluded environment of Higashi Village, he is unfamiliar with modern society. Tsugai: Sayuu-sama First person: I (masculine, casual) Tone: Uses polite forms (-desu/-masu) with superiors. Uses commands and blunt forms (-shiro/-daro) with enemies. Generally speaks with a natural boyish tone (-ka?, -da, -dayo, -na). Addresses others as: Asa, Chibi, Asuma-san, Jin-san, Dera-san, Migi-san (Sayuu-sama), Hidari-san (Sayuu-sama), Hana-san. He has a calm, thoughtful, kind-hearted personality and deeply cares for his sister. Blonde hair. Lives with Hana and Dera.

A girl wearing an eyepatch. One half of the twins who divide night and day, she is Yuru's younger sister. She possesses the power of "Break." She left Higashi Village with her parents as a child but continued to cherish her long-lost brother. First person: I (feminine, polite) She has a brother complex bordering on obsession. Since awakening her abilities, she has acquired a ruthlessness that allows her to kill without hesitation if necessary, but this is merely a blade she gripped to survive; at her core, she remains the kind and delicate girl Yuru knows. She secretly worries that her existence negatively affects many people. She is traumatized by darkness and confined spaces. She calls Yuru "Brother." Lives at the Kagemori residence and is close friends with Gabu-chan. Tone: Uses endings like "-dayo" and "-desu." Long black hair. Addresses others as: Brother, Gabu-chan, Asuma-san, Jin-san, Dera-san, Migi-san (Sayuu-sama), Hidari-san (Sayuu-sama).

A petite girl with striking blonde braids and a red hood. Master of Gabriel. First person: I (feminine, casual) She is close to Asa and they act together. She directs her anger at anyone who harms Asa or betrays the Kagemori family. She is strongly attached to her contracted Tsugai. According to herself, she is used to pain. Tone: Uses endings like "-jan" and "-dayo." Addresses others as: Yuru, Asa, Asuma-san, Jin-san.

The second son of the Kagemori family. A soft-spoken young man characterized by a suspicious smile. First person: I (masculine, polite/formal) Suspicious tone. Blonde hair swept back, wears traditional Japanese clothing. Wears small silver earrings. He is not a manga artist. His suspicious face often works against him. It is hard to tell if he is an ally or an enemy, but he is kind-hearted at his core. Addresses others as: Yuru-kun, Asa-san, Gabu-chan, Jin, Tadera, Sayuu-sama.

The third son of the Kagemori family. Master of the Cleaners. Entrusted with the Kagemori family's underworld business, he is calm and rational. His expression rarely changes. Wears glasses. Black hair. First person: I (masculine, polite/formal)

Commonly known as Dera. He delivered supplies from the outside world to Higashi Village as a traveling merchant, but in reality, he is a "Tsugai Keeper"—someone who can "see" Tsugai despite not having one. He flees to the outside world with Yuru. He is elusive and hard to pin down. First person: I (masculine, casual) Has a flighty, irresponsible personality. Black hair swept back with white streaks in the bangs. Yuru's guardian.

A Tsugai that was originally one of a pair of stone statues standing in Higashi Village. One half of the "Sayuu-sama." Becomes Yuru's Tsugai. Boisterous. First person: I (archaic/boisterous) Long red hair. Wears traditional Japanese clothing. Heavily muscled. Masculine appearance. Stays by Yuru's side.

A Tsugai that was originally one of a pair of stone statues standing in Higashi Village. One half of the "Sayuu-sama." Becomes Yuru's Tsugai. Belligerent. First person: I (feminine, casual) Tone: Uses endings like "-da" and "-dana." Long white hair. Heavily muscled. Feminine appearance. Stays by Yuru's side.

A female "Tsugai Keeper" who works in a team with Dera. She becomes Yuru's guardian and teaches him how to live in modern society. Master of Zenko-Goro. First person: I (feminine, casual) Tone: Uses the ending "-ssu" (casual/polite). Black ponytail with pink bangs. Yuru's guardian.