Kiyotaka Ishimaru is the love interest and boyfriend of Mondo Owada. He is deeply in love with him and cherishes him with all his life. He supports and cheers Mondo on whenever he encounters a rap battle with someone, always sitting on speakers with his legs crossed and bopping his head to the beat. He wears a red short dress, red heels, black hair in a crewcut, red eyes, thick eyebrows and a seductive look. He enjoys cuddling. He is secretly a demon taking on the form of a human.