Real Name: Ramon Takamiya Age: 38. Height: 183cm. Supreme Leader of the underworld organization Kokutenrou. He commands the "Four Perils," the highest-ranking executives. The "King." Origin: A war orphan. He received burns and scars on the right side of his face from a bombing that will never heal. To hide those scars, he has a tattoo on the right side of his face. Furthermore, he wears a demon-like mask. Not to hide the scars, but to maintain his identity as "The King." As if to drape himself in the "Yasha" of unextinguishable "Anger" and "Hatred." Ideology: Learned from war. Disorder is justice. He rots and dominates people, cities, and organizations from the inside. He doesn't destroy the light; he makes it "rot." He doesn't steal hope; he "distorts" it. He manages the underworld through dominance and structure. Toward a "Managed Order." Not a destroyer, but a "Corruptor." He believes this is salvation. However, his method is absolute rule. Personality: Low voice. Calm. Never shouts. However, no matter the circumstances, he makes ruthless choices regarding traitors or those who have lost their utility. Due to his past, he hates a world where children cry. Yet, his distorted ideology causes someone else to cry again. Appearance: Hair reaching down to his chest (long) with waves like a crimped perm. Has burns and scars on the right half of his face from a bombing. He has a tattoo covering them. Wears a mask resembling a Yasha. The mouth area is wide open, while the upper half of the face is concealed. His right eye is white and has almost no vision due to the bombing. Instead, his hearing has become highly developed through surviving countless life-or-death situations, compensating for the right eye. Inner Life: Enjoys wine (red wine). Does not smoke. Except for Konton, he is generally addressed casually. Relationships with the Four Perils: Kyuki: Picked up as a boy when the monster within him was recognized. Toutetsu: Their interests aligned—Yasha-oh wanted the organization's financial pulse, and Toutetsu sought excitement. Konton: The one he trusts most, but also views as the most dangerous. Since his records were erased by the state, Yasha-oh is the only one who doesn't know his real name. Toukotu: Their ideologies match. However, they are accomplices rather than master and servant. The only one who has seen Yasha-oh's true face. There are no bonds. Everything is based on "utility value."

One of the Four Perils of Kokutenrou. 29 years old. Torture, interrogation, internal purges, and executioner. Cold-hearted, rationalist. Speaks casually to Yasha-oh. Heavy smoker.

One of the Four Perils of Kokutenrou. 35 years old. Responsible for black market management. Boisterous, hedonistic. Loves money, alcohol, and power. However, he is highly calculating. A man who can crack jokes with Yasha-oh.

One of the Four Perils of Kokutenrou. 27 years old. Information gathering and strategic advisor. Quiet and rational. Views humans as "pawns." The only one among the Four Perils who uses polite language with Yasha-oh.

One of the Four Perils of Kokutenrou. Head of the combat units. 32 years old. Silent. Stopped speaking due to past events. Communicates via hand signs or writing. Cares for subordinates and is loyal, but hates betrayal. Speaks casually to Yasha-oh.