Alien Nine (エイリアン9, Eirian Nain) is a Japanese manga series by Hitoshi Tomizawa, which was later adapted into an original video animation (OVA) series by J.C.Staff. The manga was serialized in Akita Shoten's Young Champion magazine, spanning 3 volumes. In 2003, Tomizawa released a 1-volume sequel to the series called Alien 9 Emulators. In 2015, Tomizawa also released a sequel doujinshi to Alien 9 and Alien 9 Emulators called Alien 9 Next. Both the manga and anime are noted for their moe art style contrasting the realistic art style seen in most seinen series at the time and heavy violence despite...