Charge them.

Shiki took the chance. Suddenly, she bursted forward, drawing her knife out, as the men opened fired on her. Several gunshots rung throughout the building, a stray bullet hitting a window and shattering the glass. So loud was the confrontation, that nobody could hear the shrieking cry of pain that had followed, but it was all done and over in a flash of a minute.

Business continued as usual for the men. It was an incident that wasn't even worth having to explain to the boss. As some men started to commence cleaning of the scene, sweeping up the brass shells and glass shards along with hauling out a large black garbage bag, one man tasked with mopping up the floor took note of the exquisite knife lying in the red puddle. He picked it up, noted it's value, and pocketed it to pawn it off later.

Ryougi Shiki's missing poster went up a few days later, staying in place till they were too weathered to be readable anymore.