Regression to a past life in isekai anime and manga is a common trope in the genre, and many series have main characters that in one way or another have kept the memories from their past lives and are currently trapped in some sort of time loop, or the best case scenario, trapped in their past with the knowledge that something really bad is going to happen in the future. But there are various alternative ways to play the regression card and colorful characters all around in several different series that are worthy of mention.