Sword of the Dark OnesSword of the Dark Ones.

Sword of the Dark Ones, known in Japan as Ragnarok (Japanese: ラグナロク, Hepburn: Ragunaroku), is a Japanese manga series illustrated by Tsukasa Kotobuki. Based on a novel written by Kentaro Yasui, the series was serialized in Kadokawa Shoten's Monthly Shōnen Ace magazine from 2000 to 2003, with its individual chapters collected into three volumes.