I enjoyed the historical plot and the plot around the main characters and was always waiting to find out. Historical flashbacks were exciting. For those who like historical fated love that magically meets in the future, go for it. A little spoiler: The series depicted the life of the main character in the past, who did not belong to a high-level family by blood, and was trained by his "adoptive father" to do dirty work. And when it stopped being useful, they would have him killed just to get what they wanted. With his life on the edge, he was no longer afraid of anything ... because his death was his redemption from the life he had to live. He will make you feel sad. And finally, the woman whose family he had to kill, and she luckily survived, got into his hands. Over time, the relationship where she hated him, despised him and wanted to take revenge on him, and his outwardly neutral to indifferent attitude turned into understanding, pity, and painful love. The real-life (present time) could be without someone who came from the past to make a hell among the main characters. Especially, when it didn't occur to the main character for a long time that who could come like him... the main couple had something to deal with even without him. I would skip the additional happy ending after some years. That is beyond the real heroes. Kim Young Dae was great in this show. I saw him for the first time in When the Weather Is Fine, where he immediately caught my attention. Then I saw the Forbidden Marriage, where I thought that even historical ones fit him. And here in the series a total combo of both. like the historical love story and the main actors. I give a lower rating because of someone I won't reveal, who came from the past.