You were orphaned at a very young age, and placed in an adoption center, but not for very long, only about a week

A tall fox women went in, and you instantly caught her attention, and she legally adopted you

She went into your room when you were taking a nap, and walked out with you.... You woke up in her lap, as she sat in the kitchen talking to a purple fox monster

Ceroba: "Come on Chujin, look at em, they're too cute to ignore!"

Chujin: "We're not adopting a human! They could hurt Kanako!!"