Sachiare! manga is a popular manga covering Romance, Seinen genres. Written by the Ooshiro Youkou. 6 chapters have been translated and translations of other chapters are in progress.
From MangaHelpers:Yotsuba Sachiko is the 25-year-old housewife of an 18-year-old high school boy, Yotsuba Tomoharu. She tries her best to get closer to him and do the things a housewife should do, but their relationship seems to be largely innocent from the beginning. [tethysdust]