Baek Yerin :: A 17 year old Angel from Croist, on in Human World — Heaven. She's stubborn, aggressive and a fighter. Despite of her appearance, no one knows how touch and how big is — she's known in her school as a delinquent and been breaking Croist rules after discovering the human world's gate for going into the human world everyday without permission.

Choi Sulli :: Her pretty face and her family background gave her the crown as the country's princess — she may not be an idol or an actress, people wanted to be like her. 

Oh Sehun :: He's the son of a mobster but no one knows aside from his friend, Myungsoo, who is a chaebol. He's not used at talking to girls but when he does, he can only speak little or just one simple sentence. He's also a member of the school's archery club and the top of the said sport.

Kim Myungsoo :: He's the future heir of their electronic company, Amirith Electronics, and the only son on their family. He's quiet like Sehun and good at Taekwondo.