One Piece Chapter 989 – The Straw Hat Pirates Assemble

Betraying every underestimation cast upon them by the rulers of the sea, the Straw Hat Pirates break through the arrogance of the Yonko and stamp their existence deeply within the Yonko’s rage. With the ripples of their presence ignored until impossible, chaos has taken over and erupted because of them. Right now, with the identity of the age on the brink, they have gathered. The Straw Hat Pirates have finally assembled. All ten current members. And Luffy has his sight set firmly on Kaido with the intention of sending him flying. The Beast Pirates who impede his path become the targets of the Straw Hat Pirates. War has begun. And the challengers have made their move.

[Theory] One Piece – Kaido: Prisoner Of Punk Hazard

From the very start of Kaido’s introduction, we have known that he has been defeated as a pirate seven times, been captured by the Navy or his enemies around 18 times and has lived as a prisoner before. Kaido was tortured over a thousand times and was sentenced to death forty times and yet nothing done to him was able to kill him. From that introduction, we can surmise that Kaido was in his enemies hand’s for a significant amount of time. What we have yet to have revealed beyond why Kaido is so “unkillable” is where and when exactly he was held as a prisoner and by whom. When looking at what has been featured so far across the story since Kaido’s arrival onto the pages, I find myself compelled to believe that at one point in Kaido past, over 33 years ago, he was held as a prisoner on Punk Hazard and experimented on.