Uika Misumi is a first-year student at Hanasakigawa Girls' High School. She is the guitarist, vocalist, lyricist and composer of sumimi. She also goes by the stage name Doloris and is the vocalist, lead guitarist and lyricist of Ave Mujica.

She is a minor character in MyGO, however she does play a vital role in the show, on top of that, during the last episode, her band performs a song, so it will also be expected of Ave Mujica members to sing as well, Uika is the main vocalist. Here is an example of her speaking. (turn on English subs for video!)