Rin-chan wa Suezen Shitai is a Manga/Manhwa/Manhua in (English/Raw) language, ROMANCE series, english chapters have been translated and you can read them here. You are reading Rin-chan wa Suezen Shitai chapters on ManhwaZ, fastest updating comic site. The Summary is
Kobayashi is a thirty-something high school art teacher, and Rin-chan is the beautiful and popular girl at the school. These two people shouldn't have anything to do with each other, but actually they share a common secret. A reluctant love comedy between a middle-aged teacher and a naively eager JK!