|Romanized Name||Sensei Sensei|
|English Name||Sensei Sensei|
|Debut||Episode 01 - The Indelible Dream|
|Japanese Voice||Katsumi Watanabe|
|English Voice||David Wald|
Sensei Sensei is a mysterious entity in which Tsubasa Katagiri is praying to. Suzuko Kanzaki think that this entity may be true producer of AKB0048 . It is sometines called "the Great One" or "S-Quadruple" (S.クワドラプル, Esu Kuwadorapuru).
The only thing that is known about its appearance is has glowing yellow eyes and a disembodied voice.
So far,very little is known about sensei sensei, or S-Quadruple. Tsubasa seems to serve this entity along with other ladies in a tempel under 00 stage, where They dress as Miko, So far, only Mayuyu and Yukurin have made mentions of Sensei Sensei, and only Suzuko has made mentions about finding more about this mysterious entity/person.