The Mermaid King Begged Me to Return

Ryla, the daughter of a god, gave up her godhood for love and married Aiden, the Mermaid King, only to spend five lonely years as his wife. On their son's fifth birthday, Aiden arrived with another woman, and their son even wished that Ryla would stop being his mother. Heartbroken, Ryla left the Mermaid's Kiss behind, returned to her own realm, and agreed to marry the God King.

There, she was loved and cherished by everyone. Only then did Aiden and their son realize they had lost the most irreplaceable person in their lives.