Allison & Lillia (アリソンとリリア, Arison to Riria) is a Japanese anime television series adapted from the light novel series Allison and Lillia and Treize by Keiichi Sigsawa. The anime, produced and animated by Madhouse, and directed by Masayoshi Nishida, aired in Japan on the NHK BS2 television channel between April 3 and October 2, 2008, and ran for 26 episodes. The first half of the anime covered the Allison novels, while the second half covered the Lillia and Treize novels.