Gyutaro Uzui is a major antagonist in the anime and manga series Kimetsu no Yaiba (Demon Slayer). He is one of the Upper Rank Six demons within the Twelve Kizuki, sharing this rank with his younger sister, Daki. Gyutaro is known for his jealousy toward those he perceives as blessed, and his deep bond with Daki drives much of his character. As a demon, he possesses formidable combat abilities and serves as a significant adversary during the Entertainment District Arc.