In 2006, Agafonova/Dun won their first JGP medal, silver, in Taipei. Svetlana Chernikova and Marina Zoueva were listed as their coaches in the 2006–2007 and 2007–2008 seasons. In 2007–2008, they placed 4th at one JGP event, took silver at another, and finished 6th at the Junior Grand Prix Final. They placed 7th at the 2008 World Junior Championships in Sofia, Bulgaria.