Born in Novigrad in 1994, a whole six and twenty minutes before his fraternal triplet brother and sister Kirill and Kaatje. They are three siblings from the legendary Nivek family.
Kvass is a high functioning alcoholic, rarely seen without a bottle of vodka in one hand and a cigarette in the other. Unless he is holding his Kalash, in which case he holds all three.
His favorite past times are inciting and committing violence with his brother and sister, selling drugs and listening to hard bass whilst squatting. They are often found loitering listening to the hardest bass.
When the Novigrad raiders dispatched Koi and his squad to Jelení Ostrov, Kvass, Kirill, and Kaatje were selected by Killer Koiwalski to join the squad and head to the island in order to push comfort and raid (bitch).
After a sea-sickness inducing boat journey, they finally arrived at the island and set off into the forest to do what they do best.