Title: Furueru Kuchibiru
Aired: Apr 25, 2014 to Jun 27, 2014
Based on the adult manga by Inu. A disaffected young woman named Katakura Kon has entered into an ambiguous but very sexual relationship with her homeroom teacher. She rarely attends school and has taken to living with him, but neither one is willing to explain their feelings to each other. Frustration overflows, however – and even when dating, they can’t quite communicate without sex!