Kamishiro Rui is a cat boy, also called “cat man”. He looks like a normal human, just with cat ears and a cat tail. Rui has bright yellow eyes, purple hair with two blue sides. As a stray cat boy, he is vigilant and athletic. He does not aspire to have any master but still longed for warmth. He values ​​friends. He fights for what is important to him. He is very defensive, behaves gracefully. He used to be very lonely, so he will be very obsessed with person he loves.