Didn't Expect That I Am the Mastermind Behind the Scenes

After the Third World War, the number of human beings has been greatly reduced. Human beings can no longer waste the remaining population on war, but the war will never end. This is a movie that combines the worlds of Girls' Frontline and Azur Lane. The protagonist of this book will bring a system equipped with the gerand world to send the shock of the steel giant to this world already filled with beautiful girls. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.