In "Demon Slayer," certain characters have become particularly disliked among fans. Zenitsu Agatsuma is often criticized for his over-the-top antics and whiny personality,
Hantengu primarily features in the Swordsmith Village arc, where he arrives with the intent to massacre the weapons experts residing there. Despite being chosen by Muzan as one of the Upper Moons,
Daki is introduced as a stern yet stunning courtesan in the Entertainment District arc, and even while in her human disguise, she displays an openly cruel and vain nature. As a himedere, she embodies the archetype of a wannabe princess
The Hand Demon is the first significant antagonist in "Demon Slayer," making his debut during the Final Selection arc. He ruthlessly murders innocent participants, reveling in their suffering
One of the first demons Tanjiro encounters is an unnamed, generic demon that confronts the Kamado siblings at a remote temple one night. Lacking any backstory, this demon serves as a basic example of the typical demon
Akaza delights in mocking those he perceives as weak, including formidable foes like the Flame Hashira. However, to his surprise, Kyojuro Rengoku proves to be a formidable opponent, pushing Akaza to reassess his arrogance.
Zenitsu Agatsuma faces less fan backlash primarily because he isn't a demon and doesn't seek to harm or consume humans. Aside from this, his problematic behavior creates minor conflict in the story, particularly regarding his infatuation with Nezuko, Tanjiro's younger sister.
Sanemi Shinazugawa is introduced as the wind Hashira and the older brother of Genya Shinazugawa. Genya's flashbacks provide valuable depth to Sanemi's character, making him slightly more relatable. However, he still remains far from being a fan favorite among the Hashira.
As time passed, "Demon Slayer" fans discovered reasons to appreciate Tengen Uzui. He played a crucial role in helping Tanjiro defeat Daki and Gyutaro, and many saw him as a worthy successor to the late Kyojuro Rengoku.