Hello, this is Homura. For those who needs the mondaiji-tachi pdfs. Here is the link below. It's quite sad with the DMCA problem with copyrights. Luckily, there's also a Chinese translations for it till Last Embryo.
Mondaiji Volume 1-9 English Translate:
My 'boss' has now made a link where you can get to download all chapter except of Mondaiji volume 11 and 12, Last Embryo volume 1 and 2. Here you go,