Riko Saikawa is one of the supporting characters in Kobayashi-san Chi no Maid Dragon and one of the main protagonist of Kobayashi-san Chi no Maid Dragon: Kanna no Nichijou. She is Kanna Kamui's friend and classmate. Riko has wavy shoulder-length brown hair. She has dark green eyes and usually dons a light-green, long sleeved shirt with a rounded yellow neckline fronted by a bunny motif, a pale orange skirt, white high socks, and green shoes. She sports a yellow-rimmed tag clipped to her shirt and an orange daisy pin in her hair. Riko appears to have an especially shiny forehead, as it gleams with a flash of light in many scenes of the anime. Much like some other characters, her outfit is prone to change in accordance with her environment, situation, and surroundings. At first glance, Riko seems bossy and mean, but over time she seems nicer as shown with Kanna and very polite around people like Kobayashi. She has a crush on Kanna and enjoys being around her. When being touched by Kanna or receives praise from her, Riko tends to grin goofily and get red in the face, becoming overwhelmed with excitement.