Yellowness (Overlord NPC-SI/OC)

Story of an OC/SI/Whatever getting hit by Truck-kun and isekaied into Overlord. But not as an all powerful Supreme Being, or even a high Level Player. No, they were turned into an NPC of the Tomb of Nazarick at the height of Ainz Ooal Gown in Yggdrasil. Warped and twisted into a glorified vending machine, doomed to be sent to the New World with the rest of the monstrous NPCs the Tomb hosted. Can this former human maintain their own humanity in a den of monsters, or is the cost of such an act even worth it in the end.....