Ring!
A phone started ringing, breaking the silence spread inside the room.
Shu stood up and walked towards the back wall. There was a number pad on the wall that was attached with a fingerprint sensor.
He placed his left hand on the fingerprint sensor while he typed the numbers with his right.
/28740/
After pressing the code, he removed his thumb from the fingerprint sensor.
A door became visible in the wall that was invisible until now.
There was another number pad on the door.
Shu pressed a different code inside this time.
After he finished typing the code, the door was unlocked. He pushed the door open and entered the hidden room.
The room inside had many safes. It also had a few portraits hung on the wall.
There seemed to be a portrait of a middle-aged man who seemed to have similar features to Shu. Beside that portrait was a portrait of a woman who looked slightly younger than the man in the portrait.