Alien Rui has thin, yellow eyes with red eyeliner along the crease, and uneven, choppy purple hair with two cyan streaks. His right ear is pierced with star earring, the other being covered by his hair. His voice is gentle, though it becomes strained when he is excited or curious

Rui is an easy-going genius. He's meticulous about making every show the best it can be, making use of his flair for technology and inventiveness. His somewhat unique way of thinking often gets him labeled as a weirdo