After his father's demise at the hand of Gaya Hotel Group, Han Yi Soo has lived for one thing only: vengeance. But there's a huge obstacle in Yi Soo's way: his inconvenient love for Jo Hae Woo, the heiress to Gaya Hotel Group.
When Yi Hyun is kidnapped, Kim Jun risks his own life to save her, while Hae Woo's relationship with her grandfather becomes severely tested.
Jo Ui Sun's kidnapping causes a breakdown as well as a rift between him and his father.
As Yi Soo and Hae Woo continue to track down Choi Byung Ki, they start to discover startling secrets from the past.
Hae Woo takes a closer look at Kim Jun, suspecting that he is hiding something. The cover up from 12 years ago resurfaces, and haunts the Jo family.
Jo Ui Sun's affair and involvement in the hit and run comes to light, but he refuses to admit his mistakes. The path to the truth becomes a deadly game when another person close to the truth is killed.
A game of cat-and-mouse between Kim Jun and Jo Sang Gook turns deadly as Kim Jun threatens to reveal Jo Sang Gook's secret.
Kim Soo Hyun makes a deal with Chairman Jo to kill Han Yi Soo.
Hae Woo and Detective Byeon interrogate Choi Byung Ki, but to no avail. Will Chairman Jo's secret ever be revealed, and will prosecutors and police be able to bring him to justice?
Hae Woo is on the hunt for Yi Soo, believing that he's been watching her in Korea all this time. Joon Young isn't too comfortable that she's so insistent on Yi Soo being alive though.
Things take a dramatic turn when the public learns about Jo Ui Sun's hit-and-run incident, putting the Jo family in turmoil.
Yi Soo makes it his mission to find the person who kidnapped Yi Hyun in order to expose Chairman Jo, and Hae Woo tries to confront her feelings for Yi Soo.
Hae Woo, Yi Soo, and Kim Soo Hyun all independently trace clues that lead them to discover a shocking secret about Yi Soo's father, which causes Yi Soo to question his plan for "restoring balance"in the world.
When a dark secret from the chairman's past threatens to surface, Yi Soo's father finds himself framed for a hit-and-run he didn't commit, and then mysteriously murdered. Yi Soo vows to discover the truth.
Hae Woo, now a prosecutor, tries to reinvestigate the deaths of Yi Soo and Yi Soo's father, postponing her honeymoon in the process.
When an old watch resurfaces in Hae Woo's hands, it puts her father in turmoil. She begins to reinvestigate the case from 12 years ago.
While investigating the events leading up to Detective Oh's death, Hae Woo and Detective Byeon discover that the key to solving all of their cases might lie in a photo of Hae Woo's great-grandfather.
Twelve years ago, Jo Hae Woo and Han Yi Soo's first meeting starts off on the wrong note, but when Hae Woo's family is in turmoil, she turns to Yi Soo for comfort.
As Hae Woo continues her investigation, she begins to realize that the people closest to her might be involved.
A trip to Okinawa brings to light unimaginable secrets hidden in the past.
When Yi Soo is presumed dead after an accident, Hae Woo refuses to accept it.