"People, is it okay to kill?
The rising star of Bessatsu Margaret, Ryutatsu Nakata, depicts a suspenseful tale of revenge and moral ambiguity!
"Shun, don't overlook those who have repented. Everyone deserves a chance to change."
"Grandpa, I hope they've changed."
...In order to slay the inhuman monsters, the boy himself becomes something inhuman.
Dubbed "Experimental Subject A," subjected to daily torment by five classmates. Shun Urushima, a sixth-grader, lived in the "hell" of relentless bullying. Yet, within that hell, there was "salvation" in the form of a brother who cherished him and parents who protected him. Until that day when the five monsters took his family away with their monstrous deeds... Eventually, having lost everything and witnessed true hell, a dark "wish" took root in Shun's heart. Guided by his grandfather who served in a secret unit during wartime, Shun is reborn. And four years later, he appears before his fateful enemies... This revenge is not something he will hand over to anyone."