魔王陛下のお掃除係 [Maou Heika no Osoji Gakari]

In this manga series from Akita Shoten, a lowly castle cleaner finds her mundane life upended when she's assigned to tidy the chambers of the Demon King himself. Running since 2019, the story blends fantasy and slice-of-life comedy as the protagonist navigates her unusual duties and the eccentricities of her terrifying yet oddly endearing boss. Known for its lighthearted character dynamics and charming art, the series offers a fresh twist on the demon lord trope within a compact 12-issue run.