Gangoose

Based on a true story, this manga's focal point is Modus Operandi and Crime. It's a story about a group of teenage thieves in a reform school who target assailants.
In response to abuse, Kazuki spent time in a reformatory school.
The group, Takeo, consists of three "psychedelic" people who have specific targets: criminals of "assault."
Kazuki—genius of the tool Kimootadebu and leader of Takeo; Twink—Information Analysis Psychedelic and Target-Selection In-Charge; Giants—the superhuman strength of Takeo and Vehicle Maneuver In-Charge.