Soushiki was born over a century after Kaguya Ōtsutsuki was defeated by her children and by the first few moments of life, he already was considered a prodigy once he accidentally spit a ball of fire from his mouth after he sneezed. When Soushiki was five years old, he was playing alongside his friend, and they travelled far from they usually played around, and ended up on the top of a mountain, and encountered a weird black figure, who told them they shouldn't be there and would eat them alive if they didn't leave. While his friend ran in fear, Soushiki showed no fear whatsoever, and only wondered what that figure was. The figure introduced himself as Zetsu, and asked Soushiki if he was from the Ōtsutsuki clan, something that Soushiki confirmed. After taking a good look at him, Zetsu real