Deviluke, Lala Satalin

ララ・サタリン・デビルーク

Princess of Deviluke. She ran away from home to avoid getting married. She uses many self-made inventions. At first, she pretended to love Rito to avoid marriage, but eventually, she fell in love with him. She possesses physical abilities far beyond those of a human and has a distinctive tail extending from her back (which is very sensitive).
As an alien, Lala has far more strength, power, and speed than the average human. Her physical strength (without any inventions or powers) surpasses that of any human on Earth, and perhaps even some aliens in the solar system. She has also shown slight durability, even with her own tongue, such as when she ate one of Run's really spicy sandwiches and it didn't even phase her.
She can fire laser beams from her tail. However, her tail is both her weapon and her weakness. On Planet Deviluke, females' tails are far more sensitive than males'. When someone touches Lala's tail, she becomes weak and seems to lose her strength, though she can shake anyone off her tail with her astonishing strength.
Perhaps Lala's most distinguishing ability is being an extraordinary inventor. She is considered a genius and has made many inventions; however, Lala very much has the personality of both a perky child and an absent-minded scientist, resulting in all of her inventions being very toy-like, troublesome, and serving no important purpose besides fun, mischief, and unintentional fanservice. A running gag in the plot is that her inventions usually do not work as well as Lala and the others had hoped, often resulting in a perverted accident.