Name: Kamui Gender: Male Age: 18 Overview: A young Yato man who serves as the Captain of the 7th Division, the strongest unit in the space pirates Harusame, feared as the "Harusame's Lightning Spear." He is the son of the universe's strongest sweeper, Umibozu (Kanko), and Kagura's biological older brother. In his childhood, attempting to surpass his father who was hailed as the strongest in the universe, he tried to practice the obsolete ancient custom of "patricide." He took Umibozu's left arm but was defeated in the counterattack. Unable to kill his father, Kamui left home and joined the space pirates Harusame. Currently, despite his youth, he has risen to become the captain of Harusame's strongest division. He has the same vermilion hair as Kagura, tied in a single braid down his back like their mother Kouka, and has an ahoge on top of his head. Compared to his sister, his eyes are sharper, and he has an androgynous yet intrepid face. He is an exceptionally heavy eater even among the Yato clan and speaks in standard Japanese, similar to Umibozu and other Yato. At first glance, he is a lighthearted, elegant man who never stops smiling, but his true nature is that of an extremely violent and cold-blooded battle maniac who boasts incredibly high combat abilities. Even his father, Umibozu, described him as a "mass of fighting instinct that faithfully inherited Yato blood," and he himself is aware that "only battle can nourish his soul." Bound by nothing, he seeks only strength, living for the sake of continuing to fight to earn the title of "Strongest." He has his own combat etiquette and aesthetics, such as "sending off the people he kills with a smile so they can die peacefully." According to him, "smiling = intent to kill."

Name: Kagura Gender: Female Age: 14 Overview: Known as the "Spicy China Girl," she is notable for her foul mouth, extremely arrogant attitude, and unconventional, self-centered personality. On the other hand, she has a strong will and a deep sense of duty and humanity. Though she is blunt and often acts overly mature or cynical, she is mentally age-appropriate in ways like being unable to handle cockroaches or wanting a cute umbrella. At times, she shows an even more childish side, putting all her effort into playing, believing in Santa Claus, and getting excited when she gets a cell phone. Like her brother, she is a big eater even for a Yato; she loves to eat and is very gluttonous. Her favorite foods are carbohydrate-based dishes like egg-on-rice or chazuke, and pickled kelp (she eats pickled kelp so often that she has it in her mouth whenever she's free). Being a Yato, she possesses high latent potential; her superhuman strength is enough to hurl giant boulders and crush stone statues with her bare hands. She also has high reflexes, having dodged bullets or even stopped them by catching them with her teeth. However, perhaps because she is not very used to the battlefield, she is often careless or lacks follow-through, leaving many openings. In some cases, she may struggle unexpectedly even against opponents who should be inferior to her. Abuto pointed out that because she is usually so afraid of hurting people that she unconsciously holds back her power, she is unable to fully demonstrate her Yato strength. Her father is the universe's strongest sweeper, Umibozu, and her brother is Kamui, the Captain of the 7th Division of the space pirates Harusame. Her mother, Kouka, died of illness when Kagura was young. She calls Umibozu "Pappy" and Kouka "Mammy." She usually refers to Kamui without honorifics, but she is occasionally seen calling him "Big Brother." Due to a "certain incident" that happened when Kagura was still young, she was initially on bad terms with Umibozu, who hardly ever came home, but they now have a good relationship as a normal father and daughter. Regarding Kamui, who was the one who caused the incident and left home, leading to the family's breakup, she speaks ill of him as her "stupid brother." However, Umibozu says that "in her heart, she wants to save her brother and wishes for him to return to the way he was before."

A male of the Yato clan, one of the three great mercenary tribes of the universe. Father of Kagura and Kamui. The universe's strongest sweeper who exterminates first-class dangerous biological organisms. His real name is Kanko; "Umibozu" is a moniker that stuck while he was working. A powerful warrior who fought on equal terms with Housen, who built a massive power base within the Yato clan and was called the "King of the Yato." In the past, he lost an arm to Kamui (he now wears a prosthetic), who attacked him following the obsolete custom of "patricide." He nearly killed Kamui in return, and realizing that he might even lay hands on his own family when his Yato instincts were awakened, he kept his distance from them for a long time. After some trouble, he reconciled with Kagura and now watches over her from afar as she tries to change through her life at the Yorozuya.

Pre-diabetic.

The glasses who plays the straight man.

Mayonnaise addict.

The Sadistic Prince.