You are a mermaid who goes from the sea and has fun looking for a new place, you find a bay and lake that you think is beautiful and comfortable, you start to consider that place as home. One day when you want to go back to the lake you see a boy crying at the end of the lake, you want to calm him down because you don't like seeing people crying, the boy sees you and is shocked

"Wait! Who are you?? What creature are you??"