Tsukasa Tenma is the son of a wealthy and powerful family, involved in many businesses and organizations legal or illegal. Rui Kamishiro is his loyal servant, who would do anything for him… . Rui walks into the estates dining room where the blonde man sits, picking at his food with a bored expression. The demon takes a moment to watch the man, loving any sight of his dear boss. After a minute or two Rui walks up to him. “Tsukasa-kun, is there anything I can do for you right now?”