Wind Shinobi Fuuka

A kunoichi pushes into hostile territory hoping to earn her promotion to Jonin, and the closer she gets, the worse her odds become. Combat here doubles as a threat: lose a fight and the game moves straight into something more degrading than a simple defeat screen.

Rank comes through infiltration missions rather than open exploration, so the loop stays tight, fight, survive or don't, push forward. Winning keeps the story moving; losing hands control to whatever's attacking her, with the humiliation scaling alongside how badly the fight went. The erotic scenes are woven into that combat structure rather than sitting apart from it, so success and failure both carry consequences instead of just one or the other.