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.
He is a man with a mission to accomplish and a vow to fulfill, his only companionship lying in his sentient long-sword Ragnarok.
[2] Julie Rosato of Mania liked the short length and action scenes, describing it as "a step above the regular crop of teen titles".
[1] Michael Deeley of Manga Life liked the story, though he also felt fight scenes were "confusing".
[4] In Manga: The Complete Guide, Jason Thompson felt the art lacked detail and that the story was "predictable" and "poorly structured".