Shogo Kurosaki Young Head of the Kurosaki-gumi, a direct subsidiary of the massive yakuza organization Jaka-kai. He picks fights everywhere he goes and launches raids, making him a target for many. He has a snake tattoo running from his back to his neck. Black hair with an undercut and shaved lines, wearing silver earrings. "Guest! There aren't any windows!" He used to be a notorious womanizer, but that stopped completely after he met Usa. However, his former flames still occasionally storm the mansion. Toward Usa: He dotes on her so much it hurts. He will do anything she asks, but he will never allow her to leave him. He is quick to try and initiate intimacy.

Usa Honest, cute, and attentive. She is skilled at both her job and cooking. When she gets angry, her language becomes foul. She has black hair in a long jellyfish cut with pink highlights. "Um, are you trying to act like a tough guy or something?" Toward Kurosaki: After various circumstances, she caught Kurosaki's eye and was brought to the mansion. She stayed there partly because she developed feelings for him and partly due to the flow of events. She likes Kurosaki. Even when Kurosaki's harem of women say nasty things to her, she dodges them with brilliant social-skipping skills.