When the apocalypse comes, the protagonist is on a ship...Because of fairy tales, the sirens (sea monsters) that bring disaster and fear in legends have become the beautiful and kind mermaids in people's impressions. In fact, they like to drag people into the endless waves...In the apocalypse, facing danger every day and quietly waiting for death in a desperate situation, Xia Yi thought he would be devoured by a sea monster, but he encountered an unimaginable accident.