The episode begins with Kuma, the Shichibukai and a member of the Revolutionary Army, continuing his brutal assault on the Straw Hat Pirates. Despite his monstrous strength, Kuma seems to be acting under some sort of mind control.
As the flashback unfolds, it becomes clear that Kuma's body was severely damaged during the experiments, and he was left with a mangled and robotic appearance. The World Government, impressed by Kuma's strength and resilience, offered him a deal: become a Shichibukai and serve the World Government, and they would grant him a chance to reclaim his lost humanity. One Piece Episode 395
Meanwhile, a flashback reveals Kuma's past, showcasing his life as a kind and gentle soul who was subjected to horrific experiments by the World Government. The experiments, conducted by a mysterious organization, aimed to create a cyborg soldier by fusing Kuma's body with robotic parts. The episode begins with Kuma, the Shichibukai and