Lee Hyukjae, the merman of one of the most elite families in Mertown, has an obsession with holes, might it be the deepest hole in the ocean or his best friend, Donghae's ears. And he performs his weird experiments on the merman with blue tail. Donghae is just an angry merman who wants to kill his best friend a

that stupid title? Yess,it stupid! Why can his sister stole his girlfrind? So let just wait what will going on......