charbios: Kaolla Su
It is not clear exactly where she is from in the anime, though in the manga she is from the fictional kingdom of Molmol (supposedly located near the International Date Line) and is the princess of said country. Both the anime and manga depict her as having a somewhat Middle Eastern influence, and both specify that she is not Indian. The dot on her forehead seems to have something to do with the 3-eyed symbol of Molmol, though it resembles a bindi dot. She is a very hyperactive girl who is usually either kicking someone, trying to eat something, especially bananas (and Tamago), or inventing some potentially dangerous new device. Her most perpetual project is a serious of increasingly powerful versions of Mecha Tama-Chans, her personal line of robotic combat turtles.
A mad scientist to the core, many of Kaolla's inventions contain something that serves as a self destruct device.
Molmol itself has a few properties that can be gathered from indirect evidence. It is a kingdom where the sun appears constantly to be red. It also uses a western naming order, although the Hinata house residents never seem to pick this up: Su is Kaolla Su's last name.
Kaolla likes all the other residents in the Hinata Apartments and gets along well with them, though they have difficulty keeping up with her hyperactive tendencies (only Motoko seems able to tolerate it). As for liking Keitaro, it is because he reminds her of her older brother. She has an older sister, too; Amalla Su.
Kaolla's best friend is Shinobu. Kaolla seems to have developed some affections toward Shinobu, though Shinobu does not realise this.
Her ambition is to return to her homeland and establish a computer school so that she could transform her country into a technological power that will rival Japan.
You might say Kaolla Su is a genius in the fields of mechanics and electronics...if not for the fact that her creations tend to create more problems for the Hinata residents than they solve. She is currently in her second year at Hinata Middle School (where Shinobu also attends).
Yeah she's not from Japan. Everyone else really knows that she came to Japan to get away from her siblings. You can get a clue about where she comes from by checking out her room (Room 301). It's a jungle out there!