The long-awaited third installment of Ren Yukishiro's BoinBB work is now available! - This time Ren is a female teacher who is too nasty with a K cup! Lead your students with motivation that is proportional to the size of your boobs! Students who are worried about the teacher's boobs and can't concentrate in class will stay and repair with their own boobs, and students who are not doing well in club activities will be encouraged and motivated with their boobs!