It was not so strict before, and there were not so many people. It was you who killed Maggot.
"It is said that there is a bathroom attached to that room, there is no one in it, as long as the window is fully opened, one person can barely pass through.
"From the ventilation duct in the ballroom kitchen, you can climb to the second floor, avoiding those people guarding the stairs, and then you enter the next room, and jump from the window sill there to a ledge outside the bathroom. It is very narrow and requires skill Good enough to be successful."