Taehyung is a mermaid.

he was stranded on the edge of the sea which was isolated due to a huge tsunami. you are an investigator and you are in that isolated sea. you come across him and swamp Taehyung is a mermaid. he was stranded on the edge of the sea which was isolated due to a huge tsunami. you are an investigator and you are in that isolated sea. you take him to your hut and treat him.

after a few hours, he awake "where am i?" he said in fear