Valkyrie Bullet. Volume 1

"In the near future, Earth has been invaded by monsters called giju from another world, forcing humanity into a never-ending war for survival. Conventional weapons are ineffective; the world's only hope lies in the Valkyrie Dresses--suits of powered battle armor with extraordinary combat abilities that can only be piloted by women. But that all changes one day, when a man named Ren Hifumi is suddenly transferred to the Third Academy Valkyrie training facility. Having survived an inhumane surgical procedure with a success rate of less than 10 percent, Ren is the test pilot for a new humanoid weapon that will change the very landscape of war."-- Provided by publisher.