Gundam impact; healing armored hands [Mobile Suit Gundam wing X Honkai impact]

Humanity now is forced to run and hide, either inside of well-defended cities, or into the depths of the slum-like underworlds, as a scavenger form the slums with no past to call home finds a machine form a bygone era, with it baring the name of the god of doctors, allows him to fight back against the world invaded by the forces calling themselves the "will of honkai"...where the god of doctors lift a little helping hand to the Valkyries on the battlefield... fighting inside Hersscher-like machines...