10 Most Overpowered One-Arc Antagonists (Gone Too Soon)

In the ‘Demon Slayer’ arc set on Natagumo Mountain, Rui is a powerful demon—ranked fifth among the Twelve Kizuki. He fights using incredibly sharp threads and can even manipulate bodies, turning people into a twisted, forced family to trap his enemies. Tanjiro and Nezuko narrowly escape his attack thanks to a timely rescue by the Hashira, highlighting the significant difference in strength between demon slayers of different ranks. The unique and detailed fight scenes involving Rui’s threads are beautifully animated by the studio ufotable.








