Is this supposed to be like this?

http://dynasty-scans.com/reader/series/wife_and_wife

http://dynasty-scans.com/reader/volumes/wife_and_wife_vol_1

They're listed on the artist's page twice, too:

http://dynasty-scans.com/reader/authors/minamoto_hisanari

Fixed.

Thanks for pointing that out. (They're part of the volume, but not the series)