Peach!

Houshi Saito, is a 25 years-old "cherry boy" whose wife had run away from him on their wedding day. One day, a beautiful girl called Momoka Kiyozumi came to him, and confessed that she fell in love with him at the first sight on that wedding day. At the same time, he was employed to an English conversation school called "PEACH". Run by a woman called Chieri Sakura, his job was to get an "extension contract for the lessons via falling in love with the female students and have sexual relationships". With the world filled with women and lust opened in front of him, Houshi's life went on... (from Baka-Updates)