After being dumped by his fiancé, heartbroken Hong Kong police officer Fallon Zhu gains 200+ pounds. His superiors demote him to the job of escorting convicts to Japan. When a convict in his custody mysteriously dies, he must team up with citizen Thor to solve the mystery.

20 years after his escape from Impel Down, the legendary pirate Shiki, the Golden Lion, reappears causing massive upheaval to the Marines. During his long seclusion, he was able to come up with a scheme to bring the World Government to his knees. On his way to execute the plan, Shiki crosses paths with the Straw Hat Pirates and becomes ...