13 most disliked Demon Slayer characters, ranked

3. Kokushibo (Upper Moon One)

Kokushibo, the top tier troublemaker of Demon Slayer, takes the bronze medal in the villainy Olympics, ranking him third in our chart of not-so-adored characters.

Imagine your favorite superhero turning their back on everything they stood for, donning the villain's cape, and then cranking up the evil to eleven. That's Kokushibo in a nutshell. Once a respected figure with a connection tighter than a knotted headphone cord to the Demon Slayer Corps' history, he pulled the ultimate "no, u" and betrayed everyone. His descent into demonhood, powered by a buffet of jealousy and a thirst for strength, turned him into the nightmarish Upper Moon One. Fans can't help but boo at his Shakespearean-level betrayal and the havoc he wreaks. His actions are like watching someone steal the last slice of pizza, but infinitely worse because they affect countless lives across centuries.

But why does Kokushibo, of all the dastardly characters, secure such a high rank in the hall of shame? It's not just about his power level or his beef with the good guys; it's the drama, the betrayal, and the lost potential that gets the audience's blood boiling. He was once on the path to heroism, only to choose the dark side, making his fall from grace a spectacle of "what could have been." His battles are not just clashes of swords but collisions of what he represents - the ultimate betrayal of familial bonds and values the Demon Slayer Corps fights to protect.

Every swing of his moonlit blade cuts deeper into the emotional fabric of the story, making him a character fans love to hate. He's like the friend who spoils your favorite show; except, instead of spoiling plot points, he's out there spoiling, well, everything.