The Divine Surgeon - Vol. 2 Ch. 89

[MangaDex]

 

[InfiniteParadox]

So like. That insect must have other side effects than just being "poisonous" or a way to control somebody.
Like affecting their minds somehow to make them more loyal. Cause right after they are removed it seems like the person sorta returns to their "right mind" and realizes what they have done was not something they would usually do.