Carson, a second-time transmigrant, enters the world of Dragon Ball, only to die immediately as collateral damage from a battle between Goku and Piccolo Jr. during the 23rd World's Martial Arts Tournament. Knowing he can have that power for himself and get even stronger, he embarks on a journey in Other World to learn from North Kai.
In one stroke of epiphany, he taps into the potential of Kaio-ken that not even Goku has managed to uncover. This is the legend of an Earthling mortal who will defy fate and dominate all the forces of the universe, surpassing Saiyans and leaving Gods trembling in fear.
I read the intro and I already see problems with this story. As any dragon Ball fan should know that the Kai's in the series do not just train anyone and the mc shouldn't even be allowed on snake way. As they only train heroes that are pure of heart like Goku. or warriors who have spent their lives saving people.