Tiffany and Sunny are celebrating 2 years officially together in Jeju Island and they meet the real life mermaid (해녀) Kim TaeYeon.   Foreword  Its a real life au, not fantasy. Its not required, but you all should search about "haenyeos", theyre amazing real life mermaids from Jeju, the women who dive in the ocean to fish.  I guess Im writing this fic in three chapters. Thats my idea, anyway.Since I felt like good SNSD polyamory stories were lacking around the internet, I thought it would be nice to write my own, since Im polyamorous myself. And its been really fun, so I hope you enjoy it as much as I did. —giulia