This is a story involving vampires. It goes back to 350 years + when Baek Jung Won (Lee Seo Jin) saved the vampire I-Wha (Son Tae Young) from being burned at the stake in his village. He fell off the cliff while they escaped and I-Wha had to give him her blood in order to save him from dying and thus Baek Jung Won was transformed into an vampire also. In the modern day Seoul, they opened a bar. (mydramalist.com)