1. The treasure in the graves were legit, Ainz gave them there money and a chance to leave, if they didn't then it's there fault. 2. The chains lower stats and boost how quick you gain exp 3. Kyohoukou's room is way worse in the light novel 4. Outside of Arche who easily gets off easy in all 3 versions, the others of Fourseight end horribly, the Cleric went insane from memory testing, the half elf and the leader...I honestly don't want to say, let's just say it involved parasites, chestbursters from alien, regeneration, looking into each others eyes, and paralyzed