Master, from now on I shall take my Revenge

A college move-in leaves the protagonist alone in his relatives' house, and that's exactly when a self-described "passing-by maid" named Tamahime shows up at his door. The setup is played straight-faced even though everyone involved knows it's nonsense.

He takes her in anyway, mostly because the terms she offers are too good to question. The catch, which she doesn't hide for long, is that she isn't there to cook and clean so much as to get even with him for something the story only slowly explains, leaving him to wonder how much of his "safe" new domestic life is actually a trap closing in slowly.

Day to day, the game runs as a small sandbox around that household: managing routines, running into Tamahime at inconvenient moments, and following her scenes as her maid act keeps slipping to reveal the revenge underneath it. Sleep, solitude, and the occasional lapse in judgment give her plenty of openings to work with.