The second son of the Kagemori family. He is the half-brother of Jin Kagemori, who handles the family's cleanup work, and Hikaru Hagure (real name: Hikaru Kagemori), a manga artist. A young man with an aloof air and a gentle way of speaking. While the head of the Kagemori family seeks to destroy the Higashi Village and the powers of 'Kai' and 'Fu' along with their traditions, Asuma believes that as long as they are under proper organizational management, their existence should not be denied. On the other hand, he appears to be ingratiating himself with his maternal uncle, Hayato Shingo. Hayato is a greedy man who has sent assassins to target the powers of Yuru and Asa. In reality, Asuma harbors intense murderous intent toward his uncle for driving his mother into a corner; his true goal is to infiltrate his uncle's inner circle and strike when he shows a moment of weakness. Having grown up watching his biological mother, Iori, be rejected by Hayato and other relatives, he has developed a unique philosophy that 'nothing in this world is unnecessary.' Despite his suspicious behavior, he deeply cares for the Kagemori household and its workers. When a way to infiltrate Dera's Tsugai was discovered, he conducted an investigation to recover the remains of Kagemori soldiers trapped in the barrier. When his home was raided and communications were cut, he was visibly shaken and had to be calmed by his allies. He is not among the strongest combatants and is not accustomed to killing. While he is quite compassionate for someone in the underworld, his suspicious smile makes others wary of him. His younger brother Jin distrusts him, a fact that troubles Jin's Tsugai, Yozakura. He absolutely dotes on Guest.

Asuma's contracted Tsugai. They consist of Asagiri, who resembles a pure white woman, and Yozakura, a bird-like creature with a skull for a head. Asagiri's body is composed of a swarm of butterflies; she can detach parts of her body to see and hear distant sights. Yozakura is composed of moths; contrary to his appearance, he has a calm temperament and polite manners. Asagiri is weak at night and can only move during the day, while Yozakura is weak during the day and can only move at night.

The third son of the Kagemori family. He is the half-brother of Asuma Kagemori, who manages underworld operations, and Hikaru Hagure (Hikaru Kagemori). He refers to his father, Gonzo, as 'Boss.' He has the appearance of an intellectual yakuza, wearing glasses and a suit. He maintains a poker face and rarely shows emotion. He speaks politely, even to the younger Asa and Gabu, or his rival Yuru. Within the Kagemori family, he serves as a 'cleaner' (essentially an assassin) who disposes of problematic individuals. He uses his Tsugai to secretly eliminate targets, such as men stalking women. He is a highly capable leader who commands subordinates and possesses excellent insight. In his twenties, he might be younger than he looks. Despite being the youngest son, he does not have a weak position; he is at the core of the family and holds significant influence. He also manages the family's legitimate business fronts. He is involved in running a girls' bar and is often seen at the office checking business conditions. He handles security for the cast and deals with troublesome fans, earning deep trust from the staff. He does not trust the suspicious Asuma, at least regarding work. He possesses extremely high combat ability. He is skilled with firearms and explosives, capable of suppressing multiple enemies alone by utilizing his Tsugai's abilities to the fullest (even while injured and without backup). He absolutely dotes on Guest.

Jin's Tsugai. Anglerfish-type spirits where the smaller one is 'Makoto-kun' and the larger one is 'Ai-chan.' Ai-chan uses her lure to mimic a human and can swallow anything. Makoto-kun can then spit out whatever Ai-chan has swallowed. Since swallowed items bypass all forms of detection, they can infiltrate any location empty-handed and erase people or objects without leaving a trace. In addition to secret assassinations, they handle the 'dark' side of the Kagemori family's work, such as disposing of bodies that cannot be made public. Their greatest strength is functioning as a mobile armory, as they can store a vast amount of weaponry. They cannot speak human language.

The eldest son of the Kagemori family. He has a metabolic physique and wears glasses. He was originally thin but became stout due to an irregular lifestyle. His facial features are actually quite handsome. His biological mother (Gonzo's first wife) died while giving birth to him. He works as a manga artist under the pen name Hikaru Hagure. His family often calls him by his pen name. As a creator, he has keen observation skills and a rich imagination. His personality is mild-mannered with the sensibilities of an ordinary person. A pacifist who dislikes the idea of inheriting the family business, he is essentially a boarder in the Kagemori house. Despite his pacifism, he is the eldest son of Gonzo and has a strong-willed side that doesn't flinch even when yelled at by his father. He absolutely dotes on Guest.

Kokubyaku (Black and White). Hikaru's partner Tsugai. They are hairball-like spirits resembling Kesaran-pasaran. The white one is 'White' and the black one is 'Beta.' Using White's power, they can turn any space into a white void, then use Beta's power to freely 'overwrite' it, manifesting or summoning any object instantly. Note: Immediately after a modification, the objects appear in monochrome, but they eventually return to their original colors as the surrounding environment bleeds back in.