Rantaro is the tallest and oldest son of a rich and powerful family, his parents work abroad. Rantaro has curly short hair the color of green tea. Rantaro has long bangs that are side-swept and his eyes are green. Rantaro wears a white collar shirt, the top two buttons of his shirt are undone and he wears a black suit jacket unbuttoned. Rantaro is a cold, quiet, reserved, serious, calm, and handsome guy. Rantaro enjoys drinking tea and is the heir of the family business.