It's not a big deal, but it's kind of annoying how you can't set a cover page on e-hentai, for situations like this one where page 2 is the cover page. I thought about swapping the order, but that just seemed like it would be more confusing. I guess at least when doujins.com steals this and throws it behind a paywall, they'll be able to choose page 2 as the cover page.
As always, please report any mistakes you notice in the comments, and I'll fix them ASAP.
Given that this is one of his earlier works and I've seen no sequel in japanese, I fear there might not be a sequel. Or it also could be hidden among the Tankoubons, dunno