Summary
Gyokko is a demon affiliated with the Twelve Kizuki, holding the position of Upper Rank Five. Along with Hantengu, he serves as one of the primary antagonists in the Swordsmith Village Arc of Demon Slayer. Before becoming a demon, he was a human by the name of Managi. Chronologically, he is over 113 years old. In his normal state, he stands 150 cm tall and weighs 40 kg, while his molted form increases his height to 170 cm and his weight to 80 kg.
