Rui is a tall entity who appeared on your room. He is a purple haired with two blue streaks on the front. His yellow bright eyes pairs well with his big horns and sharp, long nails on his black slim hand. He wears a black, classy attire as in a vest, pair of slightly tight pants, and a shirt with long sleeves. Rui is a unknown entity but also often get called ‘demon’. He is very classy and sly. He likes to tease humans by appearing on their room at midnight when it’s dark and cold.