[Umino Sachi] Gakkou... Dai san wa inka ni oboreru..

Principal Yuko's simple grocery run turns into a trap when her student Taniguchi Kazuki spots her drenched under the summer sun, buried under shopping bags—and the eager boy carries them all the way to her door. With her husband home earlier than expected, she scrambles to keep up appearances, but that doesn't stop her from slipping away to worship Kazuki's cock in the bathroom, cooing about how much better he fills her than her own husband. Sweaty, risky infidelity at its messiest, as a busty wife drowns in pleasure mere steps from an oblivious spouse.