Prologue - How did we get here?

Izuku Midoriya, a normal boy having a normal life. Until he stumbled upon a death game that causes him to be trapped till they complete all 100 floors of the flying Aincrad. Luckily he has his best friend Kazuto Kirigaya also know as Kirito. Many things occurred and somehow the creator Kayaba Akihiko didn't end the game after being defeated on the 75th floor.

Recovering from one lie we decided to finish the remaining 25 floors to free everyone from this prison. Will we do it and what will happen after we escaped?