Dragon Ball: I, Son Gohan, Shall Suppress All Enemies

Reborn into a wild world, surrounded by dinosaurs, and I'm just a four-year-old kid? Seems like a hellish start, but I'm Son Gohan! You say there are Saiyans who learned about the Dragon Balls and want to come to Earth to make a wish? No problem, let me do a few more push-ups and show them the perfect combination of Earthling and Saiyan! Thus when overwhelmingly powerful enemies attack, the trained Gohan suppresses them with absolute strength, astonishing formidable foes from all times and all universes.

Goku: "Gohan, you defeated them all?"

Vegeta: "Impossible, I actually lost to a low-class warrior's son?"

Cell: "How can this world's Gohan be so strong? I made so many preparations, I've become much stronger!"

Buu: "I'm the most perfect and powerful warrior, how could I lose?"

Jiren: "This world's Gohan... something's off!"

As enemies from endless worlds attack, Gohan continuously breaks his limits, achieving the legend of the strongest individual warrior!