Nobunagun

Japanese Title: ノブナガン

Plot
To protect the world from the impending invasion of the alien species known only as "Evolutionary Invasion Objects", the supranational organization DOGOO created special warriors through DNA manipulation called E-Gene holders. These E-Gene holders are the reincarnations of various historical figures. Using special weapons called AU balls, E-gene holders can call forth AU weapons with an affinity to their assigned historical figure and use it against the invaders. Sio Ogura is one of them, being the reincarnation of Oda Nobunaga. However, her memories of her past life are limited only by dreams about the military past. Going on a school trip in Taiwan, Ogura gets caught. in the middle of a battle between Evolutionary Invasion Objects and Dogoo's E-gene holders, alongside her classmate Asao Kaoru. When one of the E-Gene holders, the reincarnation of Jack the Ripper, gets incapacitated and Asao ends up in danger when confronting an Evolutionary Invasion object, Sio uses Jack's AU ball to fully activate her E-Gene holder status. She gains her AU weapon, a massive machine gun, and assists the other E-Gene holders to put an end to the Taiwan invasion. After some reluctance, she joins DOGOO at Asao's behest.