Watch the intense 'Confession Time' from Season 2, Episode 15 here:

: Kaede Kayano reveals her true identity and the fact that she has had tentacles all along.

: Koro-sensei makes a deal with the students: if anyone in Class 3-E places first in any subject, they gain the right to destroy one of his tentacles, making him easier to assassinate.

: The students face intense academic pressure and intimidation from the main campus students, specifically the "Big Five" of Class A.

The 15th episode of (Ansatsu Kyoushitsu) varies depending on which season you are referring to. The English dub is available on platforms like Hulu, Netflix , and Apple TV . Season 1, Episode 15: "End-of-Term Time"

: Gakushu Asano, the Principal's son, attempts to investigate the rumors surrounding Class E's mysterious teacher. Season 2, Episode 15: "Confession Time"