Last Defense Academy

Last Defense Academy. The school that was meant to help save humanity. To fight the invaders and give humans a place to call human. All it’d take is surviving and protecting the school for 100 days. Afterwards, a machine hidden inside the school would activate and get rid of all the invaders.

Things didn’t go well. The power source for the machine was destroyed. A few of Takumi’s friends died. It was awful. Even those who survived and finally got to go home, couldn’t feel happy. Takumi was one of those. He wanted an ending where everyone lived. Where everyone was happy… So he decided to try again. His Hemoanima let him restart a battle and after absorbing cryptoglobin from the traitor, his power was expanded. Letting him go back almost 100 days and try again for a different ending. One where all his friends survive… things didn’t go as planned and his friends ended up experiencing a variety of different perverted situations as he accidentally affected the timeline.