Mermaids and humans coexist under the same social system. Si Yue is not a mermaid; he’s just an idle young master from a wealthy family. Mermaids possess extraordinary intelligence and are inherently suspicious, always keeping their distance from humans. So, Si Yue never imagined he’d have any connection with them—until his father informs him that the family needs him to enter an arranged marriage… with a mermaid. The groom’s personal assets amount to hundreds of billions. He’s exactly Si Yue’s type. And his personality isn’t bad—a pretty good catch. So Si Yue crams on mermaid knowledge: 1. The lighter a mermaid’s tail color, the rarer they are. 2. When a mermaid meets someone they like, scales appear behind their ears. 3. Humans can transform into mermaids. 4. Mermaids’ breeding season usually occurs between spring and summer. 5....... Just as Si Yue is about to read further, the book in his hands is snatched away by a man who appears behind him. The man’s voice is calm but chilling: “My breeding season isn’t spring or summer. Like humans, it’s… anytime.” Si Yue: “!” --- Mermaids cursed by ancient magic occasionally lose their sanity, reverting to bestial instincts. One night, Si Yue sees torn, unidentifiable marine creatures scattered across the dining table. Seated at the table is Bai Jian, whose claws and tail pin Si Yue in place. The ageless mermaid’s voice is eerily ethereal: “My lover should join me in savoring this feast.” Si Yue: “H-Help…”