User blog comment:AquilaeAltair/OnS Theories. Fifth Theory (S2) - Fifth Theory - The Awakening/@comment-36009152-20190823173603/@comment-38762161-20190903053103

Indeed, I think Sika Madu mastered something in order to be able to remember literally everything. I mean, all the demons can't recall unless the daggers are used; but well, taking into account that Sika Madu isn't a demon, it could heavily explain as to why he hasn't lost detail of his life.