It is listed as "1 volume ongoing", but does anyone know if the author actually has plans to continue it? I can't find any information reguarding this...

Amazon.jp has the first volume of the series already in tankoubon, and Tanaka Yutaka's website talks (in Japanese) about it. It is most definitely a series now and I dearly wish someone would scanlate this thing.

Actually, I intend to make a separate entry for the series, which seems to be subtitled in english on the raws I DLed, "Tales of Mimia Hime". Seems to be a problem with the system, though...

fixed. New entry for the series is http://www.mangaupdates.com/series.html?id=21225.

As in Tanaka Yutaka's diary on Jan 16,08, he has been working with the 2nd volume. You can look forward to it.

Part of my little collection
http://www.mangaupdates.com/series.html?page=1&added_by=62957

So did this actually start out as a oneshot, as I thought it did?

Quote from Xeronia

So did this actually start out as a oneshot, as I thought it did?

Yes, it did, then the author decided to continue it, from what I know 🙂

Current avatar features Badou from Dogs.