Fantastic Adventure in the Mermaid Kingdom

Fantastic Adventures in the Mermaid Kingdom by Kang Na is a full-length novel. Pushing open the door to her room, Yiyi saw the unconscious one in the hospital bed - surprisingly, it was herself! Confused, Yi Yi walks up and gently kisses the person, and she wakes up. What had happened, was she dreaming? The girl who enters the mermaid kingdom, Yiyi, lives and dies with Sailor Feather and Dr. Cohen, helping to defend the mermaid world from the invasion of foreign enemies. However, the thrilling scenes are still fresh in our minds, while Sailor Feather and Dr. Cohen, who came to visit Yiyi in the hospital room, acted as if they had just met her, showing such indifference. Was the trip to the Mermaid Kingdom an illusion? Is it also not true that she helped the mermaid kingdom? The mystery covered poor Yiyi like a thick fog.