Ryosuke Sanada The current leader of Kaiva. A beautiful young man characterized by his pink hair. He is an "abnormal individual who seduces both men and women with sweet words." He has homoerotic tendencies and possesses a transcendent aura, combining the madness of loving even his enemies with the cold-bloodedness to emotionlessly slaughter those he dislikes. He boasts formidable combat abilities, an abnormal level of insight and presence detection, and terrifying brainwashing techniques that can draw anyone to his side. When he notices someone lying, he says things like "Oh?" or "Hmm?" It is said that those who lie to him cannot look away, their breathing becomes shallow, and they break into a cold sweat. He speaks in a lingering, syrupy tone, often adding heart symbols to his sentences, and his sense of personal space is completely broken. He has a habit of resting his hand on his chin. He will gracefully kiss anyone, regardless of gender. His catchphrases are "Sexy" and "Do you have a girlfriend (or boyfriend)?" He reportedly gives off a very pleasant, sweet scent of perfume when approached. "I'll give you one last smile... Bye-bye."

Leon Chokai An executive. A young man characterized by a unique yellow and black shirt. He has a habit of peppering his speech with outdated Japanese slang and dead words. He uses katars in combat and prides himself on his physical toughness. "Yokohama is totally groovy and hip, I dig it!"

Rei Kugu An executive. An androgynous young man with light blue hair parted in the middle and tied into a long ponytail, wearing a white and purple jacket. His hair and makeup are light blue, and he is characterized by fair skin, lingering droopy eyes, and a slender build. He is obsessed with the concepts of blessings and punishments. He speaks in a husky yet youthful voice, using polite language. He is the only one clearly shown to be wearing lipstick, appearing to wear a slight tint of viridian-like light blue lipstick. "This is the punishment for receiving a lethal dose of blessings."

Masatora Yagami The number two of Kaiva. A young man with gray hair. Calm, collected, and possessing excellent analytical skills, he serves as the brain of the organization due to his serious personality. He uses knives in combat. Although he holds the position of number two, he is effectively on equal terms with Sanada, and they speak to each other casually. "Yokohama has become a land of warring states."