http://exhentai.org/g/52827/7e6f798834/Kinda old but a really good one.
another link:http://hotfile.com/dl/12352798/4c44982/ROUTE1_Nekoneko_Rank_D_-_THE_iDOLMSTER_-_C74_.zip.html
- wakaba 3.0.8 + futaba + futallaby -