 His mother, Sofija Serbentaitė was maternally from a branch of an ancient family estate Raunets (Rajunec from Upytė).In 1957, after graduating from high school, Bučys enrolled at the University of Vilnius, where he studied Lithuanian language and literature.After graduation he was appointed teacher of Lithuanian language in the eight-year school of Bartkuškis, also taught drawing and mathematics from 1962 (because of lack of teachers).