remember Mi-chan? [link]
After being defeated, Otsune was kind enough to let her live since she is still a little girl. Lost, orphaned and somewhat confused, Otsune gladly accepted her help even if the little witch tells her that "it's karma".
Now, Mi-chan lives a more productive and simple life, within the groupm who are also her new family, NIGHTjUNK. She also happily accepted Otsune as her mother, Toshi, her father and (I think) Maki, her half wolf half fox demon brother (which is a total oaf, something that annoys Mi-chan)