So apparently this manga in Japan is still ongoing and is at the very least 42 chapters in with at least 5 volumes. Unfortunately no one seems to have been able to translate anything past the first two chapters and after an extensive search online it seems no one has been able to find the raw of this manga past vol.1 to download or torrent. So I'm posting this here in case anyone wants to do more extensive searching on the matter or would like to buy the manga from japan's amazon. http://www.amazon.co.jp/%E5%BD%BC%E5%A5%B3%E3%81%AE%E9%8D%B5%E3%82%92%E9%96%8B%E3%81%91%E3%82%8B%E6%96%B9%E6%B3%95-1-%E3%83%A4%E3%83%B3%E3%82%B0%E3%83%81%E3%83%A3%E3%83%B3%E3%83%94%E3%82%AA%E3%83%B3%E7%83%88%E3%82%B3%E3%83%9F%E3%83%83%E3%82%AF%E3%82%B9-%E4%B8%AD%E7%94%B0-%E3%82%86%E3%81%BF/dp/4253255663
and here is the entire first volume of this manga for anyone interested in continuing translation...http://raw1st.com/kanojo-no-kagi-wo-akeru-houhou/
on that note this author has some rather humorous and entertaining manga series and very few of them are translated which I think is a shame. this is the same author as chu-bra however that in my opinion is probably this mangaka's worst manga.