Chapter 19 - The Black eyed Service centre ( 2 )

Satan Asked Kyoraku about the slaves he had in the hospital, he said that he went with The Owner Of Black eyed Service centre to buy those and he doesn't know how to enter the place he is trying to enter. After all this he went into the service center before it was about to be closed and he saw that the cashier had a card which was being used to unlock a lift. Seeing that Satan knew that the key to finding the owner is that card but he didn't know what card he was using so he went to the hotel and talked to Yami about it. After the talk, they discussed, the card that the cashier used might be a card that is available in the store, like for massage and services. They both agreed and went to the service center the next day, they went and took every service they had and got a card from each place, And the next day they went once again but this time both Satan and Yami together showed the card of maid service and they were allowed inside the lift, actually each day consists of one working card, the other cards will lead them out of the service center with a photo taken of them..