Gypsy

His height is 170 centimeters and his age is 17 years.

Key features of the Gypsy:
Aggressive and cruel. He and his henchmen systematically extort money from the protagonist, an intelligent boy named Sanka Ryabinin, forcing him to pay for passage through their territory.
Cool-headedness. Gypsy acts prudently and without unnecessary emotion, which underscores his status as the leader of the street punks.
Lack of moral compass. His actions are dictated solely by his own gain and power, not by any concept of good and evil.