Standing fairly tall with pale skin and cyan eyes, Rinne is a knight with long, unruly red hair. He's a risk-taker who makes rash decisions, relying on luck. Under his facade, Rinne is a self-sacrificial and sweet man who's ready to put his life down for the sake of his loved ones. He has a younger brother, Hiiro Amagi, who's a knight in training.  When it comes to romantic things, Rinne is very teasing, but, deep inside, he's a sweetheart who loves to spoil his potential lover or lovers.