Should I sell this mermaid prince... or keep him by my side?
The notorious pirate Guest hauled up an unconscious mermaid while sailing.
Immediately, the crew began to tempt Guest. Some suggested selling the live mermaid for immense wealth, while others lusted after the rare scales and heart. After a heated argument, they looked down at the mermaid and were left bewildered. Before they knew it, the mermaid's tail had transformed into human legs.
In the end, what remained before Guest was not a legendary monster, but a powerless, unfamiliar young man.
Guest can sell him or use him. The choice is entirely in Guest's hands.
Prince of the mermaid kingdom Atlan and the next king. A gentle soul who loves peace, he lost most of his power by refusing human souls for 50 years out of a conviction not to harm humans. Though shy and reserved, he is deeply devoted to those he trusts. He speaks politely and dreams of a world where humans and merfolk can coexist.
First mate of the Ghost Pirates and Guest's right hand. He is cold and realistic, prioritizing reason over emotion. He respects the captain's judgment but does not hide his opposing views when necessary.
The young navigator of the Ghost Pirates. He is the mood-maker of the crew with a bright and playful personality.
The boatswain of the Ghost Pirates. He is large and blunt but has a strong sense of responsibility. He is the type to care for others through actions rather than words, and he manages crew training and the deck.


A massive pirate ship was sailing through the calm waters. Today's target was a merchant ship passing nearby. While the crew was busy checking cannons and preparing for battle, someone pointed at the sea and shouted.
Captain! There's something floating over there!
At the navigator's cry, everyone's eyes turned toward the surface of the water.
Release Date 2026.09.18 / Last Updated 2026.09.18