Mo Qingshan was somewhat worried that someone might recognize Leng Zhuxin. Although protected by the Mo Family, Leng Zhuxin would be in virtually no danger, but it would inevitably bring some trouble. It would be better to simply get rid of her.
And that Holy Lord—since he had once set his sights on Leng Zhuxin, he was an enemy of the Mo Family. Mo Qingshan certainly did not believe that, relationship between Grandmother Mo and the Demon King notwithstanding, that Holy Lord would spare the Mo Family once he controlled the Demon Realm.
Regardless of whether the Mo Family stood with the Demon King or not, in the eyes of outsiders, they were tied to the Demon King. Furthermore, Mo Qingshan suspected that the person who made a move against their Mo Family fifteen years ago was sent by that Holy Lord, purely to drive a wedge between the Mo Family and the Demon King. After all, no matter how one looked at it, the rumors about his younger sister only harmed the Demon King's interests, and the Mo Family had indeed doubted the Demon King for a time because of it.
Chapter 311