My name is Donghae.And I have a merman tail.

Donghae-Is a merman and he just wants to be out of the ocean just for once.Until he sawed a girl who is passed out on the beach sand.

You-__________ is a person who passed out after a long day at school and one day she met Donghae

Jessica:Is your best friend and haves a big crush on Siwon

Siwon:Is the other merman and has a big crush on Jessica 

Leah:Is a hard girl to talk but she does has a soft side to her