The Slime Diaries feels like a reward. We’ve watched Rimuru tackle hardships and make new friends, resulting in the peaceful monster town of Tempest. When shows like Attack on Titan or Demon Slayer want to indulge in a slice-of-life spin-off, they tend to move the characters to a different setting (usually a high school). But Slime Diaries succeeds in fitting into the canon of That Time I Got Reincarnated as a Slime almost seamlessly.
Set in between Seasons 1 and 2, the spinoff focuses on the daily lives of the people of Tempest and Rimuru’s attempts to introduce them to his favorite parts of Japanese culture. This clash of cultures and the receptiveness of the townspeople leads to plenty of situations that are equal parts amusing and wholesome. This likely couldn’t have been achieved if not for the storytelling and comedic character writing of the main series. Nothing in Slime…