Kamei shifted his focus from art to filmmaking in 2001. Adopting a style of fusing documentary and drama with motifs of travel and music, he made his directorial debut with Chandmani (09), which features Mongolian khoomii. Guitar Madagascar (14), a road movie about human life and music, was commercially released in 2015 and screened in Antananarivo, the capital of Madagascar, in 2016. Inspired by the view of life and death at the roots of Madagascar music, he began making VATA in 2017.