Die In My Love is a Manga/Manhwa/Manhua in (English/Raw) language, Seinen series, english chapters have been translated and you can read them here. You are reading Die In My Love chapters on ManhwaZ, fastest updating comic site. The Summary is
Yumi Katagiri (a pseudonym) is a high school girl who does a bit of compensated dating on the side. But her "customer service," is a little bit different from other girls'... She would continue this behavior night after night until one day she is discovered by her high school teacher. A unique romantic suspense between a lonely girl and a passionate teacher!