The assassination of Nalan Xie completely exceeded Jiang Shouzhong's expectations.
His initial plan was merely to find an excellent opportunity, employing a semi-ambush tactic to kill Nalan Xie, while demonstrating power to the Luo Family and eliminating a hidden threat at the same time.
As for how the Luo Family would retaliate, he didn't care, as the two were already mortal enemies.
However, with the involvement of Zhang Que'er's family, although they succeeded in getting rid of both Nalan Xie and the woman named Qing, the extermination of the entire Nalan household escalated the situation to another level.
For Jiang Shouzhong, this affair had its pros and cons.
The upside was that as long as the cover-up was handled properly, no one would associate the death of Nalan Xie with him. After all, with the case escalating to a household extermination, even people like Hu wouldn't think he had the gall.