It's about a girl in high school, Hibiki, who falls in love with one of her teachers. The two start dating, but run into a lot of trouble (since they have to date in secret.) Hibiki's friends cover for her, and part of the story is also about them, too. This story was pretty popular among my classmates in Japan...even one of my teachers read it faithfully ^_^
A couple people have been sponsoring parts of this for translation! Here's what I've got up so far...
Volume 4 (Yomikiri not included)
Volume 7 (about the first third)
Volume 14 (the last 50 pages)
If you want to take part in sponsoring translations for this, go to my Sponsor Page