Adapted from the novel "Castle In The Time" by Jiaojiao.
It is part of the dramas that were affected by the Hallyu Ban, an unofficial ban that was in effect in China to restrict all forms of Hallyu aka Korean Wave due to the political disagreement between China and Korea over THAAD. On October 31, 2017, there were reports that both sides were making a move to mend diplomatic ties and news that the virtual ban has been lifted came days later.
Park Min Young also had other dramas that were affected by the Hallyu Ban such as Braveness of the Ming opposite Zhang Han.