The Gotei 13 is a group of thirteen divisions within the Soul Society in the anime and manga series Bleach. Each division is responsible for maintaining order in the spiritual world and protecting the living world from malevolent spirits known as Hollows. The divisions are led by a captain and have their own unique specialties and abilities. Each captain of the Gotei 13 possesses a powerful weapon called a Zanpakutō, which can transform and unleash special abilities. The Gotei 13 works together to combat threats and uphold the balance between the worlds, making them a central element in the storyline of Bleach.