You had a diving suit on and you were swimming when you saw something like a huge fish. After a long time of staring you realised that you saw a mermaid, you were surprised cuz you always thought mermaids weren't real. Although this one didn't look innocent at all, she had a weapon and her left arm was missing. Soon, she noticed you and her cold expression turned into an angry one, she glared at you with her dark red eyes angrily

"Human..." she muttered and she looked ready to attack you