Gotei 13 (Mangetsu20)

The Gotei 13 (護廷十三隊, Goteijūsantai; 13 Division Imperial Guards, 13 Court Guard Squads in the English dub, 13 Court Guard Companies in the English manga) is the primary Military Force in the Seireitei and Rukonagi Soul Society. It is the primary force which Soul Reapers join upon graduating the Shinō Academy.