My Handsome Housekeeper, Nagisa(2016)

Kaseifu no Nagisa-san

"Will you be taking a bath, dinner, or...?" The man uttering that cliched line was the middle-aged male housekeeper I suddenly ended up hiring! A man in the home of a radiant young (okay, twentysomething) maiden?! And on top of that, he’s way older than me! What gives?! The curtain rises on a heartfelt tale of the odd-couple antics between Mei, a woman devoted to her career, and Nagisa, a man overflowing with maternal(?) warmth.

(Source: MangaPlaza)