30 Years Have Passed Since the Prologue

I "transmigrated" into a world I'd never seen before. For thirty years, I believed I was living in a classic fantasy RPG. I became a war hero, retired, and thought I was finally about to see the ending. But... Those thirty years were only the prologue. It turns out the real story is about an academy? [Original Novel](https://series.naver.com/novel/detail.series?productNo=14360304) **Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=852765), [Naver Series](https://series.naver.com/comic/detail.series?productNo=14395909)