Hoken no Senseiほけんのせんせい; 保健室老师不做色色的事; 保健室老師不做色色的事; Insurance Teacher

From Kirei Cake: Kazusa is an adult (who looks just like a middle-schooler) that is coincidentally the new school doctor of the primarily female Wakabane Middle School! He knows everything about how the female body works, so just what lies in stock for our supposedly not-perverted heroine?!