Riko Saikawa

Riko Saikawa  (才川 リコ Saikawa Riko) is one of the supporting characters in Kobayashi-san Chi no Maid Dragon. She is Kanna's human friend and classmate.

Kanna Kamui
Though she initially tries to pick a fight with Kanna for her sudden popularity on her first day of transfer to school, she quickly becomes good friends with her. Riko develops a crush on Kanna for her cuteness and company. Some time 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 partner during school activities.

Tohru
Riko appears to acknowledge Tohru as Kanna and Kobayashi's maid and feels comfortable enough around her to ask questions.

Kobayashi
Riko treats Kobayashi with respect and refers to her as Kanna's mother, much to Kobayashi's dismay.

Fafnir
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.