Side characters in anime often play roles we either adore or despise‚ fulfilling their purpose and fading from memory over time. Yet‚ there are those rare side characters who defy this norm‚ making such a profound impact on the story that they remain unforgettable throughout the show and years to come‚ even after the series concludes. These side characters are beautifully written‚ and their role in the series turn out to be so major that they change the course of the whole story while leaving a drastic impact on the main character and the entire cast.