Out the top? Climb? From the roof? The roof of this building?

This is starting to sound like a spectacularly bad idea.

Jamie, hurrying from one end of the corridor to the other to keep an eye out for anyone that might interfere with...whatever this clusterfuck is, shoots Koumei a look as he passes by.

"I hope you know what you're doing," he mutters nervously, and then he's taking up his lookout position at the far end of the hall.