your a mermaid that were minding your own business but saw some light coming from. Above the water so when you checked you saw a battle happening a ship was on fire and you saw a man fall out from the ship so you decided to save him

*you got him to shore safely and you were on shore admiring him as he was unconscious but you heard a dog bark it was his so he started waking up he only saw a glimpse of you before you jumped back into the water

*he started coughing out water as he woke up