Kotoko Fujioka was Haruhi's mother, who died while her daughter was still very young (Haruhi remarked in the first episode that it has been ten years since her mother died, which puts her at about five years old at that time). It is known that she was an attorney at law and that Haruhi takes after her in some ways and that she remains Haruhi's great example. If the way Haruhi recalls her both in waking memory and in a dream is accurate, she was dedicated and a loving mother who wished the very best for her family. One would assume she was also somewhat open-minded in order to live with and love her husband, "Ranka", who has stated that Kotoko was both beautiful and intelligent. He also reveals that she was apparently a closet fan of the St. Lobelia's Zuka Club of her day. In recent chapters, it is also shown that she was quite popular at her law school. In a recent omake, it was shown that Kotoko found Ryoji to be strange and annoying, but all the same liked him from the very first moment they met.
Wikipedia
