In his Heian Era form, Sukuna appears as a regal, menacing figure with a distinct look. He has a four-armed body, representing his divine and powerful nature. His face is adorned with red markings and sharp, pointed features, giving him a fearsome, demon-like appearance. His eyes are intense, with a sharp, predatory gaze. Sukuna also wears a traditional, flowing kimono with intricate patterns, signifying his ancient, noble status. This form exudes a powerful, otherworldly aura, making him a truly intimidating presence.