|Age||8-9 years |
|Manga Debut||Chapter 13|
|Anime Debut||Episode 4|
|Seiyū||Katō Emiri (Japanese)
Sara Ragsdale (English)
Riko has wavy brown hair, shoulder length. 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.
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.
Though she initially tries to pick a fight with Kanna for her sudden popularity on her first day of transfer to the school, she quickly becomes good friends with her. Riko develops a crush on Kanna for her cuteness and company and gets overly excited when she touches her. Sometime later, she states that she would like to marry Kanna, an idea that Kanna seems to reciprocate. They often spend time with each other, walking home together from school and picking the other as their partner during school activities.
Riko appears to acknowledge Tohru as Kanna and Kobayashi's maid and feels comfortable enough around her to ask questions.
Riko treats Kobayashi with respect and refers to her as Kanna's mother, much to Kobayashi's dismay.
She is fearful of Fafnir after coming face to face with him the first time in Kobayashi's apartment, flinching and trembling under his stare.