The Vitrumans of the Marvel Universe

Transmigrated into the Marvel Universe, Leon discovers he has become the son of Emperor Mark and the crown prince of an empire comprising five hundred million Viltrumites. To ensure his son becomes a wise ruler, Mark decides to replicate his own upbringing by bringing Leon to New York City on Earth for rigorous training until he reaches maturity. Initially thrilled by his lineage, Leon is ready to coast through an eternal life backed by unmatched physical power, an invincible father, and a mother with limitless regeneration. However, his plans for a leisurely existence are quickly derailed as he realizes this world is far from normal. A self-proclaimed Iron Man is brawling with a green giant, a bat-themed vigilante is arranging a duel with a cape-wearing superhero in Gotham City, and a corporation called Vought has produced a suspiciously familiar figure known as Homelander. As Leon watches this increasingly chaotic reality unfold, he can only stare in disbelief at the unexpected convergence of multiple universes. Primarily blending the Marvel and Invincible franchises with elements from The Boys and X-Men, alongside select appearances from DC characters, this story presents a comprehensive crossover of American comic book superheroes.