|Romanized Name||Sensei Sensei|
|English Name||Sensei Sensei|
|Debut||Episode 1 - Uneraseable Dream|
|Japanese Voice||Katsumi Watanabe|
|English Voice||David Wald|
Sensei Sensei is a mysterious entity in which Tsubasa Katagiri is praying to. Suzuko Kanzaki thinks that this entity may be the true producer of AKB0048. It is sometimes called "The Great One" or "S-Quadruple" (S.クワドラプル, Esu Kuwadorapuru). Later, Acchan reveals that he is the collective unconsious of all living beings, which is channeled through the Kirara and integrated through Dualium.
The only thing that is known about its appearance is that it appears as if it has glowing yellow eyes and a disembodied voice.
Up until Episode 26, very little is known about Sensei Sensei, or S-quadruple. Tsubasa seems to serve this entity along with other ladies in a temple under 00 Stage, where they dress as miko. So far, only Mayuyu and Yukirin have made mentions of Sensei Sensei, and only Suzuko has made mentions about finding more about this mysterious entity/person.