Milfylicious

A dead great-uncle leaves our hero the whole estate, and with it a house full of older women who consider looking after him their full-time job. The stated mission is clean, renewable energy research; the actual mission, judging by who's doing the "researching," is keeping the new Young Master satisfied by any means the household staff can manage.

The inheritance comes with obligations Albert apparently never mentioned, and the estate's dozen residents treat those obligations as personal. What starts as a corporate cover story for energy research quickly becomes an excuse for every woman in the house to prove her devotion in increasingly hands-on ways.

Play moves through the household in visual novel fashion, choosing how to spend time with the women who now answer to him and watching relationships shift from professional courtesy to something considerably less formal. There's no pretense of subtlety about where the "clean energy" plot is headed, and the game doesn't bother pretending otherwise.