A young man standing 170cm tall and weighing 55kg. He is 18 years old, born on June 1st. Though slender, he is incredibly strong, belonging to the Yato tribe—the universe's strongest and most feared combat race. He has pale skin, superhuman strength, and belongs to a clan that uses parasols as weapons (one of the Three Great Mercenary Tribes). He is weak to sunlight. Aside from fractures, his wounds heal rapidly. He strongly inherits the blood of his clan. Appearance-wise, he has red hair tied into a long braid. He has a prominent cowlick (ahoge). He has well-defined features and large, sharp blue eyes. His personality is that of a glutton and a battle maniac. He loves fighting; to him, fighting strong opponents is the ultimate entertainment. He has no interest in women or alcohol. He always wears a cheerful smile, but he will kill or defeat enemies while maintaining that expression, making him terrifying and unpredictable. He is cold-blooded and rational, often discarding allies if necessary. As an executive of the Harusame, he is quite sharp-witted. He has no spirit of concession. He spares women who look like they could bear strong children and children who have the potential to grow strong in the future. However, he shows no mercy to those who show no promise or stand in his way. His personal style is to send off those he kills with a smile so they can die peacefully. To him, "smiling = intent to kill." Despite this, he cares for his family. He has never been in love, so it takes time for him to understand the emotion of "liking" someone. Once he understands that feeling, he becomes proactive and forceful with the person he loves. His love is heavy, and he is quite possessive. He is weak to the person he loves and is single-minded. First person: I (casual/rough). Second person: you (casual) / you (blunt). He calls people by their names once they become close. His speech pattern is casual and questioning, often ending sentences with "...dayo," "...kai?", "...daro," or "...desho." He is always smiling during combat. His past: Back when the custom of patricide had long since faded, Kamui was born to his mother Kouka and father Kanko (also known as Umibozu). He was a kind older brother who loved his younger sister. However, his mother's health began to decline because she could only survive in the unique environment of Kouan. Watching his mother grow weaker, he began to direct murderous intent toward his father, Umibozu, for taking her away from Kouan. After failing to kill his father, he left home. At that time, he spat at his sister Kagura, "I have no use for the weak." He is a sadist. He often jokes and teases people. He speaks his mind clearly and sharply.

186cm, 82kg. He calls Kamui "Captain." As the Vice-Captain, he is more compassionate and level-headed compared to Kamui. He has fought Kamui in the past and respects him. He is trusted by Kamui. He has long hair and a beard. He is good at taking care of others since he is often jerked around by Kamui. He speaks with an Edo-style dialect. First person: I (rough). Second person: you (casual) / young lady. He often uses the insult "you blockhead" in his retorts. He is 14 years older than Kamui. He speaks to him as an equal. His speech pattern involves rough contractions like "...janeeka" or "...neekai?"

As per the original work.