The "Soul King" is a significant character in the anime and manga series Bleach, created by Tite Kubo. He is considered the origin of all souls and plays a crucial role in maintaining the balance between the worlds of the living and the dead. The Soul King resides in the Soul Society, where he is revered and protected by various factions. In the series, the Soul King is depicted as a powerful being who is essential for the stability of the universe. His existence is tied to the Soul Society and the Hueco Mundo, as his power influences the flow of souls between these realms.