Thirty Years Have Passed Since the Prologue

Name: Thirty Years Have Passed Since the Prologue
Author: 기린그린

프롤로그에서 30년이 흘렀다

I was “possessed” into a world I had never seen before. Believing it to be a traditional RPG, I spent thirty years there. I became a war hero, retired, and thought I was finally about to reach the ending. But then— It turned out that those entire thirty years had only been the prologue. And to make matters worse, this was an academy story?