The Strongest Sage with the Weakest Crest is Technically Not Isekai

An analysis of whether The Strongest Sage with the Weakest Crest qualifies as isekai, examining the technical definition versus marketing classification. The series features reincarnation within the same world thousands of years later rather than transportation to another dimension, but shares tropes like RPG mechanics and overpowered protagonists that place it in the genre practically if not literally.