In the beginning of 1920 the club joined gymnastics association Yunak, but later this year separates and takes a new name sports club Balkan, which is followed by another change - FC Oto. The latter comes from one of the players - Spiridon Nedevsky, nicknamed Oto. Because he had a strong desire to get the ball while on the field he had constantly yelled at his teammates 'ot, ot!' this became a byword for the team. The club subsequently changed its name to Aprilov, FC Chardafon, Chardafon-Orlovets. They participated to Bulgarian Championship as Tarnovo Region champion at seasons of 1928-29, 1931–32, 1932–33, 1933–34 and as Gabrovo Region champion at seasons of 1944-45 and 1947-48. The best result was quarter final in 1944-45. The name FC Yantra came up in 1973, and is used until now (excluding the period 1994 - 2001 when, after a relegation for a corruption case, it played under FC Chardafon). They played in Bulgarian A Football Group between 1970–1972, 1973–1975 and 1990-1994.