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 a round studded cyan earring, the other being covered by his hair. His voice is gentle, though it becomes strained when he is excited or curious. For his casual outfit, he wears a green-hooded jacket with the cuffs colored pink, orange, and green. The jacket is overlaying a shirt with a pattern of two diagonal stripes — one grey