Fei Yin's face is extremely dark as he arrives with Cheng Sheng in the Xinfaxian Sect. After all, his plan to spend the temporary peaceful days with his lover was interrupted by Feng Mo, who personally came to call both Cheng Sheng and him. It was already good that Fei Yin was also included so Fei Yin wouldn't be separated from Cheng Sheng.
This is very considerate of Feng Mo. After all, Feng Mo was one of the people who saw how devastated Cheng Sheng was after Cheng Sheng lost Fei Yin five years ago. So now, since Fei Yin came back, Feng Mo also didn't want Cheng Sheng and Fei Yin to be separated. Feng Mo is really big-hearted.
But, this big-hearted guy… did Feng Mo also consider that Fei Yin wanted to have a couple's time with Cheng Sheng?!