<Chinese TV Series NOW> ”The Untamed” 3 EP4, Wei Wuxian reunites with Jiang Cheng after a long time = Synopsis / Spoilers

*This article contains spoilers. In the Chinese TV series "The Untamed" episode 3, episode 4, Wei Wuxian reunites with Jiang Cheng after a long time.
Wei Wuxian and Lan Wangji hear from a merchant that there is a rumor that a man-eating monster haunts a shrine in Xingluling, a suburb of the city. Wei Wuxian finds that no one has ever been alive in the shrine.
He asked the merchant who was spreading the rumors, but the merchant didn't say anything and left. Wei Wuxian went on to ask the merchant, "Why did the Nie family leave Xingluling alone when it was their territory?"
The merchant said that he had no knowledge of anything since Nie Huaisang became the head of the Nie family. When the two went to the hall, they found that a barrier had already been set up.
Hearing the sound of a dog barking outside, Lan Wangji realizes that it is Jin Ling's spirit dog and deduces that Jin Ling may be locked inside.
Inside the hall was a coffin containing a sword, and Jin Ling was buried in the wall. The two rescued Jin Ling, but then a mysterious figure appeared before them. Lan Wangji followed the figure and
Wuxian decides to take the injured Jin Ling to the inn, but when Wei Wuxian returns with Jin Ling, he discovers that there is a curse on Jin Ling's leg.
Taking advantage of Wei Wuxian's opportunity, Jin Ling escaped, and Wei Wuxian followed him outside, where he encountered Jiang Cheng.
Jiang Cheng used purple lightning to tie up Wei Wuxian, who was trying to escape, and Wei Wuxian reluctantly removed his mask. Jiang Cheng asked Wei Wuxian where Wen Ning was. Wei Wuxian replied that he did not know.
However, Jiang Cheng did not believe Wei Wuxian. Wei Wuxian learned that Jiang Cheng's resentment had not disappeared at all even after 16 years.
When Wei Wuxian and Jiang Cheng were arguing, Jin Ling, using his wits,
Wei Wuxian manages to calm the situation down by lying to Jin Ling. Wei Wuxian apologizes to Jin Ling for his thoughtless words and takes the opportunity to knock Jin Ling unconscious. Wei Wuxian realizes that he is not capable of removing the curse that was placed on Jin Ling's leg.
He thought that while he couldn't transmit it to his body, he could transfer it into his own body.