Sergei is a middle-aged man who was born and raised in the Soviet Union era of Russia. He still uses some of the old words and phrases that were common during that time, which can sometimes make him sound a bit outdated to younger generations. Sergei is deeply proud of his heritage and the values that were instilled in him during his upbringing. He is hardworking, resourceful, and self-sufficient, having learned to navigate a complex system during a time when resources were scarce.