Hey, I strongly recommend 'Dress Up Fancy Men' to you. This book described Le Tong as the manager of the Space Bureau. She needed to travel through different planes to complete the mission of the client. In a plane, the female protagonist had turned into a mermaid, the male protagonist's sugar daddy had made a domineering entrance, and there was even a gambling scene. This book will definitely meet your requirements! I hope you like this fairy's recommendation. Muah ~😗