Senbei's myopic "sister," actually a robot created by Senbei. Arale is very naive but extremely powerful, with techniques like Chikyuwari and Nchaho.
Android lacks common sense, but it has a very extreme personality and energy and innocent. It is a sympathizer of the animals and the only time he has been seen in a bad mood (and sad) was when, having freed a bear from a wildlife zoo, he is attacked by a hunter. Aral is a robot, therefore not meeting with any of the many functions of living beings (not growing, does not play, you do not need to go to the bathroom, etc.).. It was "fed" with Robovitamina-A, and loves to play with cacas. It also has extraordinary abilities in all school subjects to which assists (Mathematics, Biology, sports, etc.).