Cannot be 100% sure, but I remember more than one mentioning that Steam bans any game that has school settings, apparently even banned one with University setting, because there were students, though clearly above 18.Thank you, though not sure I will ever release this one on Steam, too experimental for it, I can't even look at the early game anymore without wanting to redo everything. ^^
So, if I remember correctly, you will not be able to do it, since there is clearly a school setting for some scenes.