[Umino Sachi] Gakkou... Dai go wa yureru mesu gokoro

When Kazuki's classmates push him to name the hottest teacher at school, his real answer turns out to be the one woman nobody would expect—the married principal, a curvy milf whose enormous breasts and round ass were made for sinning. Bent over and stuffed full of her student's rock-hard cock while Saya joins in with three eager fingers, this glasses-wearing cheat screams that no limp husband could ever compare to the way Kazuki makes her cum. Between hallway gossip and what really happens behind the principal's office door, her 'swaying female heart' is about to cross every line a faithful wife swore she'd never break.