Such elaborate ways to bring the hammer of revenge upon those that commited evil deeds.
Personally, it doesn't really seem very efficient to me. It's not like they would remember the "lessons" after they died. So maybe it's to teach others the ways of karma?
its absolutely beautiful to read that the MC actually gives back the shit he received. LOVE IT! "eye for an eye" that's the only explanation here. In all honesty, the kids in that nor village should've been killed, they were raised by those vile adults who taught them its normal to behave and act like that. There's no saving kids from that in that era, might as well end it.