Mori's search has led him to a lovely house where he spends his time in the company of his rough-and-tumble guardian Ryder and robot buddy Aiya, his gentle patron Miria, and the doting members of the Fah clan. Although none of them are his mother, they are all too eager to raise the little human as their own. And so, their peaceful days continue...until Mori suddenly reverts to his feral self and is whisked away to be sent back to his own kind! With Mori's well-being at stake, Ryder and Miria must figure out what exactly this "mom" thing entails and whether they can fill those shoes for Mori-before they lose him forever!