Gangoose

Kazuki, a teenager who suffered abuse, ends up in a reformatory school. There, he meets Twink and Giants, two other boys with troubled pasts. Together, they form a group called Takeo, deciding to use their skills not to escape their circumstances, but to take action against a specific kind of criminal: assailants.

Kazuki is the leader and a genius with tools, Twink handles information analysis and target selection, and Giants provides superhuman strength and vehicle maneuvering. The trio sets out to target criminals who commit assault, operating outside the law to deliver their own brand of justice. Based on a true story, their vigilante mission blurs the line between right and wrong.