After Sloga relegated to the Serbian League West, Parezanović stayed in the club as one of the experienced players along with captain Aleksandar Božović and a group of youth players. He scored a goal in the opening match of the 2015–16 Serbian League West season, against Šumadija 1903. Later, he was a scorer in a match against Polet Ljubić in the 3rd fixture and also made an assist on that game, so he was nominated for man of the match. In a cup match against Mokra Gora played on 2 September 2015, Parezanović scored a goal for the regular time, and later also scored one in the penalty shootout. He also scored a goal versus FAP. With total 3 goals on 13 league matches and 1 in cup, all from penalties, Parezanović was the team's best scorer for the first half-season. In the winter break off-season, he left the club.
