Ken Kaidou is one of the two main protagonists of the anime OVA 'Mazinkaizer SKL', a spin-off of the classic 'Mazinger Z' franchise. As a pilot of the powerful Mazinkaizer SKL robot, Ken is known for his brash and reckless personality, often rushing headlong into battle. Alongside his partner Ryou Magami, Ken fights against various enemy factions in the Machine Island. His role is crucial in showcasing the intense action and dynamic teamwork of the series.