The story of Ryoo Seon-jae, a top star who sadly ends his life, and his romance with Im Sol who goes back to save him.

Heirs follows a group of privileged, elite high school students as they are groomed to take over their families' business empires. These wealthy students seem to have everything under control–except their love lives. Kim Tan is heir to the Empire Group sent to study abroad in the U.S. In reality it's a form of exile, as his elder half-brother back home schemes to takes over the family business. While in the States, Kim Tan bumps into Cha Eun Sung, who's arrived from Korea in search of her older sister. He feels himself falling for her, never realizing that she's the daughter of his family's housekeeper. When his fiancée Rachel Yoo arrives to bring him back to Korea, his heart is torn between love and duty. Meanwhile, Rachel's half-brother Choi Young Do develops his own crush on Eun Sung. Who said being a rich, beautiful high school student was easy?

Dae Woong is born with a silver spoon in his mouth and dreams of becoming an action movie star. In pursuit of this dream, he visits a temple where he accidentally releases a nine-tailed fox trapped in a painting for 500 years. In the midst of this the nine-tailed fox accidently loses her orb. Her goal now is to reclaim it, and she also comes to know that if she carries the orb for 100 days, she will become a human. Can the nine-tailed fox become human?