The Story of a High School Girl That Wants to Engage in Sugar Mama Activities With a Middle School Boy is a Manga/Manhwa/Manhua in english language, Comedy series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The story is exactly the same as the title! "The Story of a High School Girl That Wants to Engage in Sugar Mama Activities With a Middle School Boy."