Berga is the second oldest Gandor son and with his two brothers runs the Gandor family mafia. Of the three brothers he seems to enjoy violence the most (this is excluding Claire, their "4th" brother), and seems to do most of the mafia's dirty work alongside Mr. Tick Additionally, in the light novels, it is mentioned that he is married to a woman named Kalia, who he seems to fight with at times.

Spoiler

In November of 1930 he and his brothers were at the Martillo Camorra gathering celebrating Firo's rise to camorrista where they unknowingly drank the Grand Panacea and became immortal.