Lee Da-hae as Joo Yoo-rin
Lee Dong-wook as Seol Gong-chan
Lee Joon-gi as Seo Jung-woo
Park Si-yeon as Kim Se-hyun
A native of Jeju Island, Joo Yoo-rin lives with her father, who is addicted to gambling. Because of her father’s debts, Yoo-rin has become particularly skilled at lying and grifting. When her father escapes the island to hide from his debtors, Yoo-rin is determined to support herself and clear up the debts by selling oranges illegally picked from a hotel orchard and working as a tour guide on the island. Then, one day, she meets Seol Gong-chan, the sole heir to the L’Avenue Hotel fortune.
To grant his grandfather’s dying wish, Gong-chan employs Yoo-rin to act as his grandfather’s long-lost granddaughter. Offering a monthly salary plus a bonus, he asks her to do what she does best—to put on an act. Not wishing to lie to a dying man, yet desperate for the money, Yoo-rin takes the offer and starts playing the long-lost granddaughter. Through a strange twist of fate, however, finding his granddaughter makes the grandfather so happy that he makes a complete recovery. Since they have claimed to be cousins, Gong-chan and Yoo-rin are forced to live together under one roof, and as time passes, the attraction between them grows. However, love is forbidden for these two, who must pass as cousins. wiki.
hkdeu recap ep 1