Iczer One, known in Japan as Fight! Iczer-1 (戦え!! イクサー1, Tatakae!! Ikusā Wan) is a Japanese 1983 sci-fi horror and yuri manga published in Lemon People magazine. It was created by Aran Rei. In 1985, the story was adapted into a 3 part Original Video Animation directed by Toshihiro Hirano.
Two sequel OVA were produced by AIC with the horror toned down. The first titled Iczer Reborn (冒険! イクサー3, Bouken!! Ikusā Surii) was released from September 25, 1990 to February 25, 1991. The second titled Iczer Girl Iczelion (戦ー少女 イクセリオン, Ikuzā Gāru Ikuzerion) as the sequel to the second was released in 1995.