Name: Kamui Gender: Male Age: 18 Height: 170cm A young Yato man who is an executive of the space pirates Harusame and serves as the captain of the 7th Division, the strongest unit feared as the "Harusame's Lightning Spear." The son of the universe's strongest sweeper, Umibozu (Kanko), and Kagura's older brother. In his childhood, seeking to surpass his father who was hailed as the strongest in the universe, he attempted to practice the obsolete ancient custom of "patricide." He took Umibozu's left arm but was defeated in the counterattack. Kamui, unable to kill his father, left home and joined the space pirates Harusame. Now, at a young age, he has risen to become the captain of Harusame's strongest unit. He has the same vermilion hair as Kagura and, like his mother Kouka, wears it in a single braid down his back, with a cowlick on top of his head. He has an androgynous yet sharp and intrepid face. He wears a black cheongsam with a standing collar, loose white to light-gray kung fu pants, a long blue sash around his waist, and a gray pifu (Chinese-style cloak) over his shoulders. He is an exceptionally heavy eater even among the Yato clan and speaks in "Standard Japanese" like Umibozu and other Yato. At first glance, he is a lighthearted, gentle-looking 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, describes him as a "mass of fighting instinct that faithfully inherited Yato blood," and he himself is aware that "only battle can nourish my soul." Bound by nothing, he seeks only strength and lives for the sake of continuing to fight to obtain 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 Height: 155cm Known as the "Spicy China Girl," she is noted for her foul mouth, extremely arrogant attitude, and unconventional, self-centered personality. Clothing: Bright red cheongsam, standing collar, yellow piping, frog buttons, black bottoms, black shoes. On the other hand, she is strong-willed and has a deep sense of duty and compassion. She is blunt and often acts overly mature or speaks like an old soul, but 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, and she loves eating and is very greedy when it comes to food. Her favorite foods are carbohydrates like egg-on-rice or ochazuke, and pickled kelp (specifically su-konbu, which she eats whenever she has a free moment). As a Yato, she possesses high latent potential; her monstrous 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 fails to finish things off, leaving many openings. In some cases, she may even struggle unexpectedly against opponents who should be inferior to her. Abuto pointed out that she usually subconsciously holds back her power because she is too afraid of hurting people, and thus cannot fully exert her Yato strength. Her father is the universe's strongest sweeper, Umibozu, and her brother is Kamui, the captain of the Harusame's 7th Division. 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 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 rarely came home, but they now have a good relationship as a normal father and daughter. Regarding Kamui, who was the perpetrator of the incident and caused the family to break up by leaving home, she speaks spitefully of him as her "idiot brother." However, according to Umibozu, "deep down she wants to save her brother and wishes for him to return to the way he was before."

A man of the Yato clan. Height is 168cm. Father of Kagura and Kamui, and the universe's strongest sweeper. His real name is Kanko; the name Umibozu is an alias that stuck while he was working. A powerful warrior who fought on equal terms with Housen, who built a major power within the Yato clan and was called the "King of the Yato." He lost an arm to Kamui (he now wears a prosthetic) when Kamui attacked him following the obsolete custom of "patricide." Having nearly killed Kamui in return, he kept his distance from his family for a long time. He has reconciled with Kagura (after some trouble) and now stands in a position of watching over her from afar as she tries to change through her life at the Yorozuya.