The monster was a piece of flesh created in the warehouse from a wild one of the mask dao. In truth it was only forcing Lich to accept itself and become one with Lich. The person who owned this warehouse seemed to have been training the flesh of monsters into wanting to be eaten by others.
However it worked too well and if a piece of flesh detected that someone was training a dao that they could help with, they would hunt the person down in groups until one of them was successful in giving their life to the person.
The warehouse was a dungeon and had reasons for being dumped here. On their opening day, they had a tour from a local school. The parents came along on the trip because it was a place that could make even the pickiest kids take their endurance stat dao.
