Shin Hyebin (신혜빈)

Hyebin appears to be the average high school student. Although shi is far sassier and a bit of a slacker, she is no different than her peers. On the outside, that is. Hyebin has actually been harboring a huge secret for a long time - a secret that has kept her from fully opening up to any of her classmates. She's actually a mermaid. But what will happen when one boy discovers the truth about this girl?

Kris Wu

Kris is a popular, cold, and hot student at Hyebin's school. He is difficult to warm up to, to say the least. Highly sought after, and loyal to nobody but his best friends, Kris is arrogant and inconsiderate. Nothing breaks the monotonous pattern of his life as an untouchable prince, until he meets one girl with a very special secret.

Luhan

Luhan is one of Kris's closest friends and one of the most popular boys in school. Like Kris, he is adored by all of the female students. Luhan is no player, but is definitely more approachable than Kris. He is the perfect guy and is always empathetic.