@ScarecrowB
Already said it, not many of earth population know what the term SM is and even less know exactly the in-depht of it
Not all JK into shounen jump (you even read the tag of this manga? this is seinen, seinen have different releases than jump)
Not all JK know what even the term SM refer to
Not all students, even to these days and even less for JK, have the same sexual drives that open up to kinky shit like any of you do
I don't want to said it but if you keep pushing this "uuuuhhhh japanese schoolers are more kinkier and open to it" all I'm gonna said is