Kipo and the age of wonderbeast (half human half Lion mute male reader)

the story began with a boy, a half mute human who live on the surface all his life until he met a borrow girl name kipo and go on into a epic adventure to find her way back home.

(This is going to a crossover with fallout you know because of the post apocalytic theme in this show)

(P.S. I don't own kipo in the age of wonderbeast and fallout)