From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Kimidori Aoi (木緑 葵, Kimidori Aoi; FUNimation "Aoi Kimidori", Viz "Kimidori Aoi"; Literally meaning "Yellow-green Blue") is the sweet sister of typical "bad girl" Kimidori Akane and works at the local coffee shop in Penguin Village, Coffee Pot.
Aoi was the first person to be introduced to Arale Norimaki. She seems to be a good friend of Senbei Norimaki and even forced him to take her to the movies while Arale was on her first day at school. While Arale was on her first day of school at Penguin Village Junior High, Aoi talked Senbei into taking her to the movies to see Nekotoraman vs. Nekotora-7. When Senbei made the See-Thru Glasses, he tried using them on Aoi while sitting on a park bench reading a book, but a Cat got on her lap and prevented him from seeing her naked crotch through the glasses. One time when talking to Kurikinton, Donbe tied a thread of her dress to a car that then drove off and unraveled her dress in front of him, causing her to get embarrassed and slap Kurikinton. She was shown to be a horrible driver in the episode The Super Driver.