A weekly anime series based on ' aired on Japan's TV Asahi on Thursdays at 2:40am from October 4, 2006, to March 14, 2007. The series lasted only 26 episodes. The complete series has been released on DVD in Region 2 format by Universal Entertainment Japan, including unaired episodes and uncensored content. The opening theme is by Rina Aiuchi while the ending themes are by doa and "Kissing Til I Die" by Jun Manaka.
The subsequent series Sōten no Ken: Re:Genesis series premiered on April 2, 2018, on Tokyo MX. The opening is "Souten no Hate ni" by AK-69 while the ending theme is "Inori no Hoshizora" by Sumire Uesaka. The second opening theme is "Soul Seeker" by Crossfaith while the ending theme is by Hiroya Ozaki.
Episode list Souten no Ken
Souten no Ken Re:Genesis
References