Haitoku no Kyoukai, 배덕의 경계 ~여교사의 이면~, 背徳の境界, Immorality Boundary
Haitoku no Kyoukai 1

Shizune, a quiet woman with glasses, becomes the object of desire when her sharp wit and innocent charm catch a stranger’s eye. Overcome by lust, he decides to toy with her vulnerabilities, slowly breaking down her resistance with teasing touches and whispered provocations. Their intense encounter escalates into raw passion as he exploits her hidden desires, leaving them both trembling in forbidden pleasure.