The earliest settlement in the narrower area of today’s Krasinec village belongs in the Roman era (1st–6th century AD). The ancient cemetery, less than half a kilometer southeast from today’s village, in the wasteland called Na vrhu, ancient plain (flat) burnt graves with accessories were discovered, which speak of the earliest inhabitants. They must have believed in the transition to the other world through fire and therefore cremated their dead. The ashes of the deceased, together with smaller and larger clay vessels and the deceased’s jewelry, were buried in a flat cemetery and the grave was usually covered with a stone slab. The ancient village near Krasinec was closely connected with the nearby villages of Boršt and Cerkvišče, as well as with a larger village on Otok, where the remains of brick buildings were discovered. In the Late Antiquity period, these villages must have been closely connected to the well-fortified settlement on Kučar hill, which was abandoned by the beginning of the 6th century.