Sensei! (Kazuhiko Mishima)

When high-schooler Mimori finds his normally stern teacher in pain after getting dumped, he wipes the older man's tears away and offers words of encouragement, even managing to make him smile. His sensei's cute smile becomes etched in his mind, and Mimori decides he wants to do everything he can to make him smile more. As time goes on, his affection for his teacher grows deeper and Mimori decides to confess his love. But can his sensei accept his feelings? Extra chapters from You Make My Head Spin.