Daredemo Dakeru Kimi ga Suki - Ch. 95 - A Teacher!?

[Absent666]

They're being extremely careless fucking so openly like that, if they get caught she could get blackmailed or transferred to a different school (but not fired or arrested because apparently that never happens)

In fictional media, we got realistic consequences tho. Boy's Abyss teacher got kicked out after Chunko exposed her sexual encounters with Reiji to the school authorities in revenge for making her college kick her from the boarding program and also was arrested (but for other matter, for running over Yuuko with her car).

That, and if you lurk through japanese news sites, you can see lots of teachers or students being expelled due to sexual affairs, depending on who initiated the assaults.