She is a young girl with lesbian leanings that loves adventure and mysteries. She is rather proud of her figure, especially in AIKa Zero, where she flaunts it, much to Aika's chagrin.
She's not the strongest but she did get one KO in the series.
In Aika R-16: Virgin Mission, she appears as a teenager with dark red hair and green eyes. She has a curvaceous body, with a large bust and a well slender figure. Her main outfit consists of short sleeved purple top with a yellow neckerchief, a light purple miniskirt, brown shoes, and near knee socks. Her sleepwear consists of a see through pink top revealing her midriff (and breasts, it being see through and all) and pink panties. She looks similar to Maypia Alexymetalia, so the two can be related, or even be the same person.
In R-16 she is one of the main characters that help Aika discover herself. In Zero she helps Aika find the missing girls wit her assets.
In Episode 3 of R-16 she knocks out Karen and strips her naked, Aika is shocked by Eri's infatuation with Karens but which she rubs and squeezes after putting the girl on her shoulder, later she is knocked out after being thrown at Aika by a giant Karen clone, Aika quickly slings her unconscious friend over her shoulder and runs away from the giant clone