At the Beginning, He Was Regarded as a Time Madman

When I woke up, I remembered that I was a master three hundred years ago and forged seven legendary weapons with my own hands. But I can't remember what I'm going to have for breakfast today because that belongs to the "future." This is basic common sense that every child in the Time Abyss Realm understands. Time flows backwards and memories accumulate forward. Until I saw my twenty-year-old face in the mirror, I couldn't remember what happened "yesterday". Worse still was a note in my own handwriting: Don't believe anything you're about to remember. Someone is tampering with everyone's past, including the version you are about to 'recall'. When memories of the past conflict, which one is the real history?