Minimon Masters

Minimon Masters is a Japanese-American animated series that premiered on December 10, 2004 and ended on October 31, 2005. Rudy Jones is a nerdy second-year engineering student at Maple-Tree Middle School. His lifelong dream is to find a cute girl to marry. Besides a girlfriend, he dreams of having a minimum, a magical humanoid used as a personal computer, which is expensive. On his way home one evening, he stumbles across a minimum in the form of a beautiful girl with floor-length hair lying against a pile of trash bags, and he carries her home, not noticing that a disk fell on the ground. Upon turning her on, she instantly regards Hideki with adoration. The only word the minimum seems capable of saying is  nya, thus he names her that. Together, Rudy and Nya explore the relationship between human beings and persocoms, as well as their friends' and their own.

Nya
A minimum, a witch-like advanced minimum with a sense of machine intelligence, with the ability to feel emotions and act on her own will, unlike other minimum.