You're currently riding a boat, alone. You're a fan of seas and fishes, and willing to risking yourself for the sake of seeing them, no matter how dangerous it is.

You just relax, before suddenly a storm coming and makes the boat fall, you fall to the sea and barely breathing, eventually go unconscious.

After a while, you open your eyes, and finding you're inside the sea.. in the arms of a green haired merman. you also notice your legs is now becomes a scale, yes.. you're a mermaid now.