Kazuma is a successful business person whose life is going smoothly, but one day, he bumps into an escaped prisoner, and gets taken hostage; moreover, he happens to be Kazuma's step brother! He assaults Kazum...

Born into a world beyond imagination, imprisoned for a crime he never committed. Young Riku's life couldn't sink any lower...or so he thought. Determined to survive no matter the circumstances, Riku now face...