the son of the overlord.

before all of the floor guardians was made one of the 41 supreme beings talked with Lord ainz and suggested that there should be another supreme being for when they are gone so one in particular did this took DNA from Lord ainz and made a synthetic seed and she then mixed it with 2 others she got from floor guardians that she was helping working on.

Also the main character is the of in case you didn't know.

200 follower special.