Subaru Natsuki is pulled into a fantasy world where death resets his timeline to a specific save point. It’s a grueling look at a protagonist who must fix his own character flaws to survive.
Why it's similar: Both shows feature protagonists who are their own worst enemies. You get that same sense of a realistic, painful redemption arc where the hero isn't immediately liked or naturally powerful.
Power comparison: Re:Zero focuses on the Return by Death ability and psychological endurance, whereas Mushoku Tensei uses a more traditional, albeit scientific, mana-based system.
Why watch after Mushoku Tensei Jobless Reincarnation: If you loved watching Rudeus struggle with his past self, Subaru's psychological journey is the logical next step.
→ See anime similar to Re:zero - Starting Life In Another World