Slayers Excellent is the second set of three Slayers OVA episodes featuring Lina Inverse and Naga the Serpent, following the earlier OVA series Slayers Special. The series was written by Keiko Watanabe basing on the original stories in the light novels by Hajime Kanzaka, directed by Hiroshi Watanabe, and originally released in Japan in 1998–1999.