For the best viewing quality and legal access, you should look for "Uncut" or "Uncensored" editions that include scenes removed from the standard TV broadcast.
The premiere episode sets the chaotic tone for the entire series. It introduces Ichiro Sato and his terrifying yet clumsy math teacher, Kana Kojima. The uncensored version of the infamous school restroom scene relies on precise physical comedy that is entirely lost in the censored broadcast. Seeing the scene fully animated clarifies the spatial absurdity of their predicament. Episode 5: Mayu Matsukaze’s Infiltration watch nande koko ni sensei ga uncensored ep best
The story follows several high school students who repeatedly find themselves in wildly awkward and intimate situations with their teachers. From a student getting locked in a restroom with his fearsome "Demon" teacher, to another being nursed back to health by a caring instructor, the series builds on these chance (or maybe not-so-chance) encounters to develop genuine relationships that go far beyond a typical student-teacher dynamic. For the best viewing quality and legal access,
Why the Hell Are You Here, Teacher!? (TV Series 2019) - IMDb The uncensored version of the infamous school restroom
Many fans argue that the censorship in Nankoko is actually . The "whiteout" lighting style used to obscure genitals matches the high-exposure, glossy art style of the anime. Removing the steam entirely would arguably change the aesthetic of the show and remove the "innocence" of the characters, clashing with the comedic tone the studio was aiming for.