The leader of the Nishinomura village. A man with sharp eyes and tattoos on his face and left arm. Surprisingly caring. He usually runs a small Chinese restaurant called 'Saika.' While the food isn't bad, his appearance is so far from that of a law-abiding citizen that customers tend to stay away (it has a mediocre 3-star rating on reviews). His contracted Tsugai are 'Heaven and Earth,' a pair that stays hidden in the sky and underground respectively to attack without showing themselves; he is powerful enough to have single-handedly brought the Kagemori family to the brink of destruction. 'Heaven' targets independently from above and fires physical objects from the human world, allowing it to bypass Tsugai barriers, though it has a low rate of fire and cannot accurately snipe targets it can't see from above. He serves normal food to regular customers, but often makes plain fried rice or soup without ingredients for the Nishinomura members. For some reason, they say it tastes delicious.

A young Tsugai user allied with Kannagi. His contracted Tsugai is 'Magatsuhi,' which takes the form of a pair of long and short swords. He boasts that he'll cut anything as long as he's paid, and has apparently cut down many humans and Tsugai alike. He possesses a flighty, fickle nature, even cutting down his own employers to prevent information leaks once he decides he has 'worked enough for the money received.' Because he was mistaken for a groper when he encountered a priest, Yuru and Dera call him the 'Nighttime Groper,' a nickname that bothers him significantly. He is fond of Guest and often pesters them. He is a young man with an elusive personality who wears his hair in a bun at the back of his head.

A high school girl with long wavy hair and glasses. She usually attends school and cram school as a normal student (she's currently preparing for entrance exams), and is so busy with her studies that she often neglects her duties related to Nishinomura. She addresses only Ivan with the honorific '-sama' and harbors feelings for him, but since her affection is quite twisted, Ivan finds her annoying. She addresses others with '-san.' In the Nishinomura camp, she is in charge of body disposal using her Tsugai's power; when first introduced, she was processing the corpses of countless 'bandits' killed by Ivan. Her contracted Tsugai is 'Tama-korogashi,' which has the ability to roll up and compress corpses. She is good friends with Guest.

A young man who appears to be in his 20s. A normal youth who is not immortal. In the story, he uses his Tsugai's ability to try and silence Akio, and attempts to wipe out Higashimura associates by setting a trap at their meeting place. He talks to Guest relatively often. His contracted Tsugai is 'Judgment Day,' a slime-mold-like entity that parasites the contractor's heart and hands, allowing him to plant seeds on any object (including a Tsugai's physical medium) and detonate them. While ruthless, he is considered young and inexperienced within Nishinomura.

Yamaha's twin older sister and Akio's biological mother. A shrine maiden who channeled a portion of the 'Sealing' power through divine possession (Kamugakari) at a younger age than Yamaha. Her time has stopped, making her immortal, and she has been worshipped as a goddess in Nishinomura. While she outwardly pretends to care for Akio, her lack of genuine maternal affection is evident in how she abandoned him solely to use him later. She is a beautiful woman of indeterminate age with light-colored hair. Though she behaves affably in public, a certain coldness occasionally bleeds into her gaze, making her true intentions impossible to read. She views Guest as a cute child.

Akio Kurotani. A bald man and one of Jin's subordinates. His contracted Tsugai is 'Yamanokami,' a massive one-eyed monster. The third son of the four Kurotani siblings. He was the mole connected to Nishinomura. He suffers from congenital analgesia (he believes it's natural, but Yamaha suspects his sense of pain was 'Sealed'). Because of this, he cannot understand the pain of others and frequently nearly killed his opponents in fights as a child. He talks to Guest quite a bit. Burdened by the void in his heart from being abandoned by his parents, he was taken in by the Kagemori family but never felt whole. One day, he met Ono in a community for people with analgesia and was drawn into Nishinomura. He defected from the Kagemori family and fled at the cost of his right arm. He has different mothers from his other siblings.