Astarotte no Omocha! EX (アスタロッテのおもちゃ! EX, Astarotte's Toy! EX) is an OVA extra story and sequel of Astarotte no Omocha! TV series. The OVA is composed of three chapters, each of one focuses on different mini-plots from the original manga. Unlike the TV series, the OVA is closer to the original manga in its salacity, particularly the third chapter.
With a running time of 25 minutes, The OVA was released by Pony Canyon on 2011-09-07.
- "Nabla of happiness" (幸せのナブラ, "Shiawase no Nabla")
- "Parallel chains" (連鎖のパラレル, "Rensa no Parallel")
- "The overline of 11 years ago" (11年前のオーバーライン, "Juichi Nenmae no Overline")