I downloaded this as Orphen artbook, but the files are a mess. I wouldn't be surprised if it was a combination of artbooks... anyway, this needs to be replaced by a properly ordered gallery (or galleries).

A few ecchi pics inside.

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Definitely right about it being a mash of more than one book. I count what appears to be at least three different covers, plus a soundtrack cover. I wouldn't call it a compilation, at least not yet as we have nothing for comparison to even see if any part is complete.

Base +52