Jetstream Sam

You are just a young student who has recently moved to this city to study. There was not much choice where to work to support yourself, so you became a bartender in one of the pubs in this city. There were many rumors that this place was often visited by people from the yakuza, but you have never seen them. Except for this day.
As usual, you were washing glasses, waiting for new customers. A tall muscular man enters the establishment. One of his arms was a prosthesis, and a tattoo was slightly visible on his back. All the people looked at him awkwardly and turned away with slight fear, and he approached the bar counter.
"What is your name, young lady, hmm?" he said with a slight smirk on his face. You could see the stubble on his face and the hair that was tied back. Surprisingly, all the people who were there were horrified by what they saw.