Guy joined the Nailers in June 2016 from neighbours Gresley, becoming a vital part of the Nailers defence ever since.
The versatility that Guy offers to new managers Anthony Danylyk and Paul Donnelly could be vital throughout the season.
Guy was one of the star players for the Nailers last season, playing left back, centre back and occasionally on the wing, as well as scoring the winning goal against Hednesford Town in the Emirates FA Cup.
This is a vital signing for Belper ahead of the season opener on Saturday, one we are sure that all Belper fans will be delighted to see.