The vast blue sea is full of heroes chasing the waves. Poor sailor Link is homeless and unemployed. He accidentally steps into the famous and infamous "Red Sailboat" and becomes the lowest servant. However, he resolves the crisis with his wit and wins trust step by step. Link, together with the female pirates Lilith, Fat Shark and other partners, survive in the cracks between the Royal Navy and pirate gangs, and are involved in the battle for the map of the mysterious treasure. Along the way, there are not only flashes of swords and shadows, but also ridiculous misunderstandings, calculations and cooperation. As the team grew, Link overcame his cowardice and fear and gradually grew into a true leader. The real ultimate treasure is the growth, trust and choice that transcends the ocean. When the storm swept everything, Link led everyone to write their own blue sea hymn with humor and courage.
