ok, I found a quirk, no idea if this is the right place for it but the manga's funny anyway so what hell.
It's a work by KAWASAKI Tadataka called Tsuitekimasu!, which is apparently licensed by Project-h, however weirdly finding the work shows something completely different from the harem rom-com of the description this is the one listed on e-hentai, about an unusual estate agent giving a house tour. I couldn't find it listed on Project-H's site either.
I'm kind of new to this so I'm uncertain how to deal with it.

Might have been better to make a comment in the Manga List Bug Topic over in the Back to Suggestions & Bugs section of the forums.

Yes yes, I know I make longwinded comments, but that's just me >.<
I should proof read my comments more, but I won't...
So keep in mind I'm filled with typos

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This was done because of a Change Request that gave the following sources:

http://www.animenewsnetwork.com/news/2013-01-17/digital-manga-project-h-imprint-adds-adult-manga-from-tadataka-kawasaki

http://www.fandompost.com/oldforums/showthread.php?18997-Project-H-Adds-%91I%92m-Coming-With-You!%92-Hentai-Manga-License

A just ruler amongst tyrants

Thank you very much for the prompt and detailed reply.
So ought there to be a second page created for the oneshot in order to distinguish it, since the two manga seem unrelated otherwise except for title and mangaka, unless the oneshot is somehow a component of the volume? but I would suspect, it is a separate entity.

(edit: I just noticed that, I left the topic title uncapitalised and missed the typo in 'linked'......so, sorry.)

The current series page is for the actual volume. The oneshot is not considered scanlated by MU since it has no release entry here, so there will be no series entry for the oneshot

A just ruler amongst tyrants

Ok, thankyou for the clarification
Would you object to a small carefully worded footnote added to the description of the volume's page, referring to the oneshot? since a fan scanlated work does exist for it, even if no release data is listed, any individual looking into his works would likely be interested in knowing about it.

I'm suddenly reminded how trivial the works of one obscure Hentai Mangaka seem, in comparison to the many thousands of works listed on here.

Uhm, I tried this H manga, and the story was about a man looking for a house/room, the female convinces him in many different ways to buy the house/room, is this the story?? Different from the cover in Tsuitekimasu!

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No footnote

A just ruler amongst tyrants