Back Arrow

The world of Lingalind is surrounded by a mysterious wall with no signs of what lies beyond. Every month, this wall gives out special gifts - metallic armbands called "Rakuho" - which allow people to transform into powerful mechanical warriors known as "Briheights". This has caused fierce battles between nations for control of the armbands, and chaos has ensued.

Then, something unexpected happens - a Rakuho falls to the ground with a strange black-haired man inside. He calls himself "Back Arrow" and claims to come from the other side of the wall. This shocking revelation could upend the entire society of Lingalind and leave everything in disarray!