Ao no Roku-gō: Saigetsu Fumachibito -Time and Tide

Blue Submarine No. 6 (Japanese: 青の6号, Hepburn: Ao no Roku-gō; lit. 'Blue No.6'), officially translated in Japan as Blue Sub 006, is a post-apocalyptic 3-volume manga series written and illustrated by Satoru Ozawa. The manga was published in 1967 by Shogakukan's Weekly Shōnen Sunday magazine. When the OVA adaptation was announced by Gonzo, the manga was remade under the name AO6. It was published by Sekai Bunkasha and was serialized in Sebun Comics magazine in June 1997. The OVA series was released in 2000. The OVA had also received two video games for the PlayStation and Dreamcast.