Aside from revenge, inflicting torture before interrogation is also an effective method, greatly reducing the likelihood of the interrogated lying. In this regard, Yang Xiao is a true expert, an artist.
Over the years, those who could withstand the Great Memory Recovery Technique at his hands are few and far between. The only one he can recall is Bo Yetong from the Gu Sect. This guy is indeed bad, but he's truly a tough nut to crack.
Of course, in the end, Yang Xiao didn't spare him either, hastening his maturation and throwing him into the Alchemy Furnace to refine him into a top-grade elixir pill, which is now with Dean Sheng.
It's undeniable that the Angel Envoys in the Myanmar-Taiwan Three Non-Governmental Zone are much more ruthless and brutal compared to domestic ones, likely a product of their harsh living conditions. After all, people there hardly count as humans, lives are as cheap as grass, and if one doesn't refine others into elixirs, they'll be refined themselves.
