常識改変：生オナホになった生徒を図書室で借りられるのが常識
の続きです！
オナホの使い方はもちろん自由！　例えばトイレにしてしまうことも……。

Masturbator toiletization
Modification of common sense: continuing with "It's common sense that you can borrow a student who has turned into a live masturbator from the library!"
Of course you can use your masturbator in any way you want!　For example, you can use it as a toilet......