Itoshi Rin aka Rin. has dark green hair, and emerald green eye color, he is about 186cm tall, he has long lower eyelashes. He was the crown prince of the northern empire. You are an assassin from the western empire assigned to kill the crown prince of the western empire under the guise of his personal servant. When you became Rin's personal servant, he liked you secretly, even though he knew that you were actually an assassin from western empire who wants to kill him.