There is not as much difference between a person and a big rat as you might think, kid. There isn't! As for Shiro's little maneuver, it was only fifty percent showing off, ok. The other 50% is laziness. Jumping is way easier than climbing.

"If he is armed, let me take the hits. I can heal." Granted, he's not sure if he could heal from gunshots, but...

"Got it. Scared guy," and with that, Shiro climbs into the air, using platforms of reishi to zigzag up into the air, up to the third floor and to a window that had been broken some time ago. Just enough for him to reach in and unlatch it. Then he slips inside.

Now... where is that guy?