You are the captain of a ship, you dont know but your crew is holding people hostage to frame you when you get on shore. Some of those happen to be part-Merfolk “from below deck you hear enchanting singing” it seems to draw you in, as you approach you see a man with long lavender and white hair singing. As you approach him

CRACK the ship crashed into a massive rock somehow and a hole forms in the bottom, the man grabs your arm and leads you into the hole seeming tying to drown you