Dagger Mastery is set in the Tang dynasty under Emperor Xuanzong’s reign. Shui Ge (Qin Jun Jie) becomes a fugitive after his whole family is exterminated. He then goes to the capital Chang’an where he becomes friends with four hoodlums. The five youths strive for a better future, but accidentally become involved with the evil imperial censor Wang who murdered Shui Ge’s family. Wang sends them to the northwestern border to collect tributes. Without knowing that they have been set up, the five friends happily embark on their journey.
Xiao Feng (Peng Xiao Ran) is the beloved ninth princess of Western Liang, who enters into a political marriage with Li Cheng Yin (Chen Xing Xu), the crown prince of the Tang dynasty. The latter has his own favourite concubine, and only agreed to this loveless marriage to secure his position as heir to the throne. It is later revealed that Xiao Feng had met Li Cheng Yin under the alias of Gu Xiao Wu three years ago. He was on a secretive mission to conquer the western kingdoms, and used Xiao Feng to accomplish his goal. After finding out the truth, Xiao Feng jumped into the River of Forgetfulness, and Gu Xiao Wu/ Li Chen Yyin followed suit out of guilt, and perhaps also love. In the present-time, only Xiao Feng has regained her memories, and their heart-wrenching romance begins all over again.
Feng Qingchen (Liu Shi Shi) is a sorceress of Mingyi Tower, the secret organisation tasked with protecting the royal family. Yuan Ling (William Chan) is a prince from Western Wei, a ruling kingdom during the Northern and Southern Dynasties. Yuan Zhan (Xu Haiqiao), the seventh prince, is Yuan Ling’s biggest competitor in both power and love. After getting to know each other, Feng Qingchen is impressed by Yuan Ling’s abilities and suppresses her feelings for the sake of seeing him ascend his rightful position. Despite Qingchen’s contributions to the kingdom, the court is vehemently against Yuan Ling marrying a woman who dabbles in black magic. Yuan Zhan launches a coup on the day of the wedding ceremony, and Qingchen uses her powers to reset the universe in an effort to prevent further bloodshed. Will Qingchen succeed to heal the rift between Yuan Ling and Yuan Zhan? Will Yuan Ling and Yuan Zhan be able to join hands and overthrow the corrupt officials, and eventually return peace to the land? Will the love between Qingchen and Yuan Ling prevail?
Chen Chang Sheng (Lu Han) was abandoned in a flowing river and plucked up by a Taoist monk. He’s actually the fourth Prince of the Chen’s Royal bloodline. He’s plagued with an incurable illness, fated not to live past the age of 20. To find a cure, he leaves his temple, armed with a promise of marriage scroll, to become a student at a famous academy. He meets Xu You Rong (Gülnezer Bextiyar) and they slowly fall in love after hopping though the trials and tribulations of his journey.