"Joan's Descendants"

Regarding the Billios Family's strange security measures, the employees were already numb to it, and Joan also leisurely entered the elevator. 

Then, she slashed her fingertip with her sharp nail and pressed the fresh blood from her finger to the elevator's wall. 

In an instant, the dormant elevator immediately closed the door, and the metal box engraved with various unique formations belonging to the blood clan moved to the top. 

One had to say that for two celestials to sneak into Jake's office, they could only hide themselves and use the normal elevator along with other people. 

Even if they had already controlled Jake. 

After all, they were still a distance away from the special elevator, yet they had already sensed the danger coming from this metal box. 

Which lunatic created such a mechanism? Only the Billios Family with too much money would do this!