Otaku goods shop Toranoana posted a preorder listing today for Naruko Hanaharu‘s first ever eromanga tankoubon, dubbed Shoujo Material. More details have emerged on the volume since we first scooped it back in February: the name (Shoujo Material), the tentative price (1,365 yen), and a release time frame (May 2008) are all present in the preorder listing, along with an image that is likely either the cover or the frontspiece. As most eromanga tankoubon retail for around 1,000 yen, the elevated price indicates that Hanaharu’s book will contain more than the usual number of color pages; It’s not likely that we’ll get any further details on the release before it reaches store shelves, but we’ll be keeping a close eye out for an official street date. Presumed cover image below: