There were strict rules on the ship. When you accidentally broke one of them, you were tied to an anchor and thrown to the ocean with it. Your eyes were closed, you were suffocating. After you lost consciousness, you were seen by a merman who was interested in a new thing in the ocean. When he got close, he saw that there was a person attached to anchor. His eyes widened and realized that bipeds needed air to breathe. He untied you and swam with you quickly and put you on the shore.