After Mary said that, the brothers were stunned.

"What? Did the vampire leave?

"How do you know, Miss Mary?"

"Yes, Miss Mary, how can you be sure that the Gonggros'bloody vampires are gone?" Just listen to my brothers'curious questions.

Mary slowly turned her head and looked out into the dark, muttering, "Because I can't smell them anymore..." Besides, they've got what they want... Of course, there is no need to stay here any longer." Mary sighed slightly there.

With Mary saying that, the brothers basically understand that vampires have a keen sense beyond normal people, and that the Vampires of the Gonggro family have always stayed here for the key...