Due to the spread of artificial biological implants known as "Augmentation Parts," people started to freely redesign their own bodies, and as a result, the world's law and order started to fall apart...

One day, a young man known as "Dog" receives a job to find this so-called "Hero" who has been getting rid of criminals lately. Who is this so-called Hero?! And what is he trying to do?!

Volume 1 includes the Shonen Jump version of the oneshot.
Volume 2 includes the Jump VS version of the o e shot.