Raised on a small Caribbean island, Kid lived peacefully surrounded by animal companions under his foster parent's care. This tranquility shattered as his dying foster father revealed Kid's true heritage: he was the son of Captain Morgan, the legendary Pirate King who once ruled the seven seas.

After his foster father's death, Kid set out to find Captain Morgan, only to learn of his demise. Discovering that pirates like the notorious Tiger Hook sought to seize the title of ruler of the seas, Kid embraced his father's legacy. He assumed the mantle of Pirate King to protect the seas from these threats. Taking command of his father's ship, the Hurricane, he assembled a crew: a girl named Pearl and an elder named Clap. Together, they navigated the challenges of the seven seas and ventured into unknown territories.

Kid's journey transformed him from a carefree island dweller into the Pirate King. He confronted adversaries like Tiger Hook and shouldered the inherited responsibility of safeguarding maritime order, focusing on establishing his authority as Morgan's successor against those exploiting the power vacuum.