Pig Dick embarks on a sea adventure with his spirit pet, Doubao. After a shipwreck, Pig Dick gets separated from Doubao. In order to find his lost companion, Pig Dick must face hardships alone. Drifting at sea, he unexpectedly meets a girl—the leader of the Light Blue Clan—who is sailing in search of the Heart of the Sea. Together, they embark on a magical adventure on the Island of Oblivion, find the lost younger brother of the Light Blue Clan leader—Weiya, and ultimately, Pig Dick reunites with his spirit partner Doubao, growing through the journey.