Manga by author Yamahana Noriyuki - Status completed

Fuguno Masuo is a hapless 24 year-old businessman who is unlucky in love, He's never even had a girlfriend! After consulting a fortune teller, Masuo believes he'll never have a chance in love. All that changes when he meets the beautiful Nagisa Shiozaki at a marriage interview pub, who herself has had the same poor luck with guys. Now he'll do anything to woo the girl, but he'll have to fend off other suitors and the affections of a co-worker, all while keeping himself out of awkward situations that always end badly for him. Originally penned by YAMAHANA Noriyuki under the pen name HANAKO.

A man comes home one day to have his wife give him divorce papers. A woman comes home to her apartment one day to find a woman she doesn't know wrapped in a towel coming out of the shower. The two want to start new lives by somehow being on their own, so they go out and buy a house. But then they both get conned by the same real estate conman on the same house, a 4LDK. So now the man, his two sons, the woman, and her two daughters live in the same house.