Become Invincible from the Invincible War

In a certain parallel universe of the Invincible Young Man, the time traveler Mark Grayson is soaring in the sky. He has experienced a lot and gained a lot. He reached a reconciliation with his father, the Almighty Man, fought against super criminals with his friends, solved most of the troubles that were about to happen in advance, and became the crown prince of the Vitrum Empire. He tried his best to live every day. Until today, a green inter-latitude portal appeared in front of him. A middle-aged black man with a deformed brain, calling himself Angstrom Levi, invited him to participate in a war, and the reward was to help him occupy other latitudes. He didn't say no, not out of ambition, but simply because he was: INVINCIBLE(Invincible Young Hero)