Reasons for being a killer

Aramis Benz sat in a seat by the window on the second floor, drinking and eating meat while looking at the street outside. It was already night time and lanterns had been hung on the streets. The dim lanterns made the streets dimly illuminated, but despite this, passers-by were still coming and going, enjoying the night life.
"You found me so soon?"
Suddenly, Aramis Benz, who had been careless, focused his eyes on a young man dressed as a warrior on the street. After a moment, he murmured...