In the TV series "Blade of Karan", Liu Siyan plays Wuyun Gezhile as the only female warrior in the "Animal Camp", and the bloodiness killed by Mongols on horseback is completely dissolved in her bones. "If you still think that women are eternal vases in action movies, waiting for the brick man to save them, then you are really behind the times." Liu Siyan revealed that her performance in the play can definitely be described as "a real knife and a real gun": "Once I was diving, I came out of the water and landed in one breath, but when I took off my mask, people around me immediately fried the pot and reached out and touched it, only to find that my eyes and ears were congested to varying degrees because of pressure. Then go to the hospital for examination. The doctor says I'm not suitable for diving. If I dive deeper, the consequences will be hard to say. "

In the play, Liu Siyan has repeatedly challenged the physical limit and encountered danger several times, but like the dark clouds in the play, she never wants to be a vase in this man's play.

Black Cloud played by Liu Siyan has the title of grassland sharpshooter, and has experienced various "extreme" tests in the process of being integrated into the "animal camp" of all male soldiers. How to learn how to swim successfully with the help of monitor Balang, how to overcome the psychological barrier of "not shooting at teammates" with the help of teammates through physical training designed with the physical limit of male soldiers, and every step makes the audience feel heartstrings for Wu Yun, a stubborn female soldier. Many viewers said that the military theme has always been a man's patent, and the dark cloud played by Liu Siyan is breaking this rule. The unique beauty of female soldiers in the dark clouds makes her a highlight in the Blade of Karan.

Liu Siyan stands out among many male roles with her solid acting skills and affinity. After watching the drama, some netizens said with emotion, "Dark Cloud is my favorite character, but on her soft face, she is full of enthusiasm and cruel to herself and her enemies, but she also puts every help of her teammates in her heart." It is the performance of Dark Cloud's persistence and strong personality, and the corner of Dark Cloud has gathered a large number of fans for Liu Siyan. In the sound of filming the sequel of Blade of Karan, a large number of netizens supported Liu Siyan. "The story of Karan's blade black cloud leaving the animal camp is expected, and her emotional destination is not clear. I hope Liu Siyan can play Dark Clouds in the sequel, and I hope to see how the sharpshooters of the Marine Corps fight. Without dark clouds, there is no motivation to watch sequels. "