Prashian is an aristocratic line gifted with 500 years of life and special powers. Elan are "normal people" who live 100 years. In this place where these two "peoples" live together, there is a Litra Palia living in among them without knowing her own name. Following the orders of servants, she lives off the charity provided by the Prashian among the Elan. She is but a "pet".
(Source: Fateful Encounters)

Chun-Yoo-Nim is the one and only princess of the heavens. She ran away from her arranged betrothed with the King Of Hell. Now missing for a few years (give or take 2-5 years) She is hiding in the human world as Dong-Young a BOY with a perverted best friend that likes to grope him, Bi-Wal. The four guardians of the Heavens are ordered to find the angel princess. With some twist and turns, a crossdressing angel, overly protective and super-powered chaperons, and to top it all off- a molesting best friend!? Hilarity ensues as Chun-Yoo/Dong-Young struggles to keep her endangered identity as secret!