Siblings Kakugo and Harara fight monsters using exoskeletons forged from fallen warriors' souls in post-apocalyptic Tokyo. When Harara succumbs to evil within his armor, Kakugo must defeat him.

Kakugo and Harara are siblings trained to fight the monsters roaming in post-apocalyptic Tokyo. 21st century. To aid them, Kakugo and Harara were entrusted with "Fortified Armor Shells", exoskeletons forged from the souls of deceased warriors. After Harara succumbs to the evil within the armor, it is up to Kakugo to defeat his sibling.—James Mackay