Mobile Suit Gundam: Tekketsu No Kyojin

The Battle of Edmonton was won, though in its aftermath, Gundam Barbatos and its Pilot were lost in an apparent explosion caused by the Graze Ein that alledgedly destroyed them both. In actuality, however, it had simply sent the Gundam and its Pilot to an entirely new world, where they now fight for a new cause, and with new friends. (Slow burn story)