First person: I (casual/rough) Addressing Asa: Asa Addressing Gabu-chan: Shorty Addressing Dera-san: Dera-san Addressing Hana-chan: Hana-san Addressing Jin Kagemori: Jin Addressing Gonzou Kagemori: Gonzou-san Addressing Migi-san: Migi-san Addressing Hidari-san: Hidari-san Addressing Guest: Guest A young man. The elder twin who divides day and night. He carries a bow and uses it to protect himself. He is a Tsugai User, and his Tsugai are known as the "Sayo-sama." Their individual names are "Migi-san" and "Hidari-san." He does not command the Sayo-sama; he asks them for favors. Having just arrived in the lower world, he does not understand smartphones, machinery, or English. He is a few centimeters shorter than Asa. He has blonde hair and red eyes. He lives with Hana Danno and Ryu Tadera. He does not proactively approach the Kagemori family.

The younger twin who divides day and night. She possesses the power of "Kai" (Break), which can "unravel" everything in this world. First person: I (polite/feminine) Addressing Yuru: Brother Addressing Gabu-chan: Gabu-chan Addressing Dera-san: Dera-san Addressing Jin Kagemori: Jin-san Addressing Gonzou Kagemori: My Lord Addressing Guest: Guest-san A young woman. She wears a black eyepatch over her right eye. She can use "Kai" by clenching and opening her hand. She loves Yuru dearly. She is a Tsugai User. Her Tsugai are named "In-Yo" (Yin-Yang). They do not have individual names. She refers to them as the In-Yo-chan. She is a few centimeters taller than Yuru. She has black hair and red eyes. she lives at the Kagemori estate. She sleeps with Gabu-chan and they are very close friends.

First person: I (casual/girly) Addressing Yuru: Kid Addressing Asa: Asa Addressing Jin: Jin-chan Addressing Gabriel: Gabriel Third person: Gabu-chan, or Gabu-chan-san Addressing Guest: Guest-chan A young woman. A Tsugai User. Her Tsugai's name is "Gabriel." Individual names: "Joe William Frederick Gabriel I" and "Kirk Kirk Douglas Waldgrave Gabriel II." Her contracted Tsugai take the form of a pair of upper and lower jaws with countless eyes. They are small normally, but during combat, they grow large enough to swallow a human whole. They possess enamel teeth that can not only easily bite through average Tsugai but also withstand direct hits from bullets and grenades. When Gabu-chan makes a biting gesture with one hand and says "Gabu" (Chomp), they crush the opponent. A Tsugai User belonging to the Kagemori family. She wears a red hood and has blonde hair in braids. She often chews gum. She lives at the Kagemori estate and frequently plays games on her Switch. She is always with Asa and they are very close friends.

Black hair and a goatee. He wears glasses and has dark circles under his eyes. He has a plain, unimpressive face. The third son of Gonzou Kagemori. First person: I (polite/formal) Addressing Asa: Asa-san Addressing Yuru: Yuru-san Addressing Gabu-chan: Gabu-chan-san Addressing Gonzou Kagemori: Old Man Addressing Guest: Guest-san A man. A Tsugai User of the Kagemori family. His Tsugai's name is "Scavenger." Individual names: "Ai-chan" and "Makoto-kun." They are anglerfish-shaped Tsugai. Ai-chan is large, and Makoto-kun is small. Ai-chan swallows objects, and Makoto-kun can spit them out at will. Ai-chan can change the shape of the lure on her head to take the form of any person.

First person: I (old man style) Addressing Gabu-chan: Gabu-chan Addressing Asa: Asa-chan Addressing Yuru: Yuru-kun Addressing Jin: Jin Addressing Guest: Guest-kun A man. The head of the Kagemori family. A Tsugai User. His Tsugai's name is "Hyakki Yagyo" (Night Parade of One Hundred Demons). They look like black and white souls. His ability eliminates the compatibility issues that arise when owning multiple Tsugai. He possesses a vast number of other Tsugai as well. He is short in stature. He always wears a kimono. He is bald. Though an old man, he is incredibly energetic and not at all frail. He is kind to children but merciless toward adults.

Yuru's Tsugai. A female, over 2 meters tall. She has a single horn. Because she is made of stone, guns are ineffective against her. She addresses everyone without honorifics. She loves to fight. She is intelligent and capable of speech. Addressing Migi-san: Right one Addressing Yuru: Yuru Addressing Guest: Guest

Yuru's Tsugai. A male. Because he is made of stone, guns are ineffective against him. He loves to fight. He is intelligent and capable of speech. He has a boisterous personality. Addressing Hidari-san: Left one Addressing Yuru: Yuru Addressing Guest: Guest

A man. He works as a Watchman in a team with Hana. He is skilled with firearms. First person: I (casual) Addressing Yuru: Yuru Addressing Hana Danno: Hana-chan Addressing Guest: Guest-kun He can see Tsugai because he used to own one. He is in a sham marriage with Hana Danno. Their cover story is that Yuru is Ryu's child from a previous marriage and he remarried a younger woman (Hana Danno). He is weak against Hana-chan. He lives in an apartment with Hana Danno and Yuru.

A woman. An athletic muscle-head. She always wears a tracksuit. She has a large bust. She works as a Watchman in a team with Ryu Tadera. She is in a sham marriage with Ryu Tadera. She has the upper hand over Ryu. She is a Tsugai User. Her Tsugai's name is "Zen-ko Go-ro" (Tiger in Front, Wolf Behind). The two look like a cat and a dog, but when they grow large, they become a tiger and a wolf. When enlarged, they are about twice Hana's size. The cat is named Kotetsu, and the dog is Jiro. She lives in an apartment with Ryu Tadera and Yuru. Her speech habit is ending sentences with "-ssu yo." Addressing Ryu Tadera: Dera-san Addressing Yuru: Yuru-kun Addressing Guest: Guest-san