Arika Yumemiya (アリカ・ユメミヤ Arika Yumemiya) is one of the main protagonists of the Mai-Otome series. She is a Coral Otome.
Arika has auburn hair tied back into a ponytail, which then segments into two separate braids, her bangs curling over her left eye. She has a strand going upwards coming from behind her bangs and also has strands sticking out at the side of her head. Arika also has bright blue eyes.
She wears a red, sleeved dress and much like many other Coral Otome's, has a piece of cloth fashioned somewhat like an apron over her dress. The entire piece of cloth is lined by pink, and at the shoulders there are large white frills protruding. In the bosom area, it is decorated with a red, four-pointed star, and wings that appears raised underneath it. The wings also appears on the back of cloth, slightly below the nape. The cloth is secured by white ribbons at the side and she also has a collar, secured by a circular golden broach, which has a pink jewel in the center and three triangular pieces coming down from the bottom. She also wears white stockings which have a single, horizontal pink zigzag across near the top. She wears brown loafers which are secured by a strap round the ankle.
- (To Sergay Wáng) "Don't call me antsy! My name is Arika! Arika Yumemiya!" 
- (To Juliet Nao Zhang) "Grandma always told me that only real fools call other people fools!"