Aqua Knight is a manga by Yukito Kishiro, which he began drawing after Battle Angel Alita. Unlike his other works it is a fantasy manga. The title character is Ruliya, a female orca-riding knight making an epic journey through the aquatic world of Marmundo. After publishing three volumes, Kishiro placed the series on hiatus to draw Last Order. He has promised to continue Aqua Knight when that is finished.