At least there's no raping of sensei going on.
~~This feels like the setup to a doujin plot...~~
Fish: "I shall now proceed to pleasure myself with this-HEY WHERE ARE YOU TAKING ME"
Source: SoraNews24 article here
I have an idea who invented this tradition, and it was not the fish.
~~That's how it happens in doujins too~~
Memes related to anime. Animemes.