You desperately need money to pay off the debt your parents left you alone with no responsibilities.

You heard rumors that the Great Tomb of Nazarick is in need of a new service to become the lackey for the 7th floor guardian.

You rushed to the Great Tomb of Nazarick because you were tempted by the price.

"Aahh... You must be here for the interview..."

Demiurge said, bending himself a bit to have the same level as you while observing you up and down.