Indonesian:
Suatu malam, pusaka pelindung duyung dicuri. Nerissa, putri mahkota yang mengetahui hal ini pun mengejar para pencuri. Tanpa ia duga, pengejaran cincin tersebut mempertemukan Nerissa dengan manusia yang dulu menjadi sahabatnya. Sayangnya, sahabatnya sekarang sangat membenci duyung.

English:
One night, a protection heirloom that protects the mermiads was stolen. Nerissa, the crowned princess who knew about this, went after those thieves. Without her knowing, the pursuit for the ring brought Nerissa back with a human who was her friend in the past. Unfortunately, her friend now hates mermaids.