Mo Yan's body had been dumped in the random burial mound. As for his face, torn off by Sheng Yue and Yan Shiba, the two of them had taken it to study and make a human skin mask - they both expressed mutual interest in this eerie craft which would make most people's blood run cold. And through this, they found they were very much in tune with each other, very invigorating...
Of course, there's no longer a fertile ground for Sheng Yue and Yan Shiba to turn evil. There's just a gray part in their humanity. Instead of doing evil, they used it against evil people. That is indeed great.
Ji Xiaoshu, a gossipy kid, conveyed an "intelligence" to Gu Ling and Su Liang: Sheng Yue and Yan Shiba planned to reorganize Yanyun Building.
"Aunt Yan suggested it, saying that life would be so boring otherwise," Ji Xiaoshu relayed earnestly, "Uncle Sheng asked her if she still wanted to do murder business like before, and Aunt Yan said it would obviously be different now, as she's a good person now!"