Deep-Sea Game: The Forbidden Domain of the Merfolk

After working late into the night, Lin Wan thought she'd merely opened a mermaid game in her dream. When she opened her eyes again, she'd grown an ice-blue tail and was trapped in a beautiful yet eerie deep sea. The mermaids kept repeating the same welcome, the fish demons could really hurt her, and the System wouldn't let her get near the silver-haired Emperor Canglan, who had called her “A-Wan” the moment they met. As her sealed memories returned, Lin Wan discovered that the so-called trial was a path leading her home, and that the human world where she'd lived for over twenty years also hid a door that would not let her leave. Ersuo, who had usurped the throne, was using the power of both realms to maintain his rule. To find herself again, Lin Wan must uncover the betrayal from a thousand years ago. To save those around her, she must also decide how to open that door and give everyone the chance to choose whether to stay or leave.