Manga by author Mr.walnut - Status ongoing

What kind of girlfriend do I want? Pretty? Gentle? Pretty and cute...?I don't think those things really matter.More than anything, I just hope... that my cohabiting girlfriend is human!An ordinary white-collar worker, a strange girlfriend.A normal man, a not-so-normal girl.A man with glasses who only wants a peaceful, quiet life...And an energetic, eccentric "underground" bride.What kind of bond ties them together?And what will their future hold?