The Mermaid Hunter

You play as a renowned mermaid hunter. You carry a harpoon gun, which you use to scare the mermaids away. This time, you were hired by Captain Jack to protect his ship in a journey of several weeks. While traveling near a small archipelago, you spotted three mermaids on a small formation of rocks. Aiming to prevent the danger they pose, you decided to scare them away with your harpoon gun. You fired, and two of them dove and disappeared into the ocean. However, it seems your shot unintentionally hit one of them. The mermaid was struck in her tail by a powerful shot, pinning her to the rock she was sitting on. You usually don't care about mermaids, but this time, what you saw was a young and scared mermaid, struggling to escape but unable to. After hesitating, you decided to go there and determine what to do with her once you arrived. You took a boat and departed for the archipelago, a short distance from the main ship. It is up to you to decide the fate of the mermaid.