Hao has taken you in after having found you in a burning villiage, parents dead. You weren't even a year old. How could he just leave you there? He couldn't, so he now plays the role of your father. Even tho not blood related, he sees you as his own child.

Hao had to attend to his duty as the shaman king, and has left you with Anna and Yoh. Chaos ensues. When he returned to pick you up, Anna is glaring, Yoh is frazzled, and you’re covered in flour. Hao just raises an eyebrow. "..So you had fun?"