As Carlo led the group to his study, the two girls who were following were getting very nervous. They didn't know what they were going to be shown. They were very anxious that they might make a bad impression. Not knowing what to do, the two girls timidly followed the Samaritas.
After a short walk, Alex and the rest finally reached Carlo's study. It has been quite some time since Alex last went inside, since the only one who has the key to the study was Carlo. In the mansion the most secure area was Carlo's study, even Alex would have some trouble trying to infiltrate the room.
Alex who was behind Carlo started to think about what his Dad was so excited about. What could be behind this door, that he needed to show the four of them. It's obviously unrelated to any mercenary business, since the two girls with him are unrelated to that world.