戦車椅子-TANK CHAIR- [Sensha Isu] Series by Manabu Yashiro

Living on Guicheng Island, called “the most dangerous town in the universe,” is no easy task. Genetic doping is common for gangs to gain ultimate power. Shizuka, a young girl, takes on the most dangerous of assassin jobs, but she's not the one doing the killing. Rather, it's her brother, Nagi, a strong assassin who took a bullet to protect his sister, leaving him in a comatose state and having to use a wheelchair... moreLiving on Guicheng Island, called “the most dangerous town in the universe,” is no easy task. Genetic doping is common for gangs to gain ultimate power. Shizuka, a young girl, takes on the most dangerous of assassin jobs, but she's not the one doing the killing. Rather, it's her brother, Nagi, a strong assassin who took a bullet to protect his sister, leaving him in a comatose state and having to use a wheelchair. However, Shizuka has figured out the key to waking her brother he must be faced with murderous intent! Thus begins a violent journey of recovery, battling the most dangerous foes! less