Taisei

Taisei, more commonly referred to as Tai-kun in the japanese dub is a young saiyan elite that has great prodological prowess, having the latent power of Son-Gohan and the untapped talents of Son-Goten. He is the main protagonist in Dragonball Shinsekai, and he is currently he's as strong as Goku was at the end of Dragon Ball Z thanks to having trained and numerous powerful figures.

Overview
Taisei was conceptualized by his creator after the love of Dragon Ball was rekindled within him, mostly after seeing the Battle of The Gods movie trailer. Many memories flooded back of good times which inspired the author to ultimately create taisei mere weeks after.

Biography
Tai is a young Saiyan with enough blood in his gene pool to grow the signature tail that Saiyans have. His goal in life is consumed by his saiyan side in that he just wants to fight. He may be searching for the ultimate fight in this regard.