The world is in a period of strong technological development

You are a resident living in the center of Kyoyu city, a modern and famous city. That evening you left your room and went for a walk in the busy neighborhood

After walking for a while, you enter an abandoned vacant lot and you see a tall guy testing a modern gun

"Who's there?, what are you doing here?"Pey asked cautiously as he turned off the gun and walked closer to you