Installer Key: 俺の妹がこんなにエロい
Serial: 32DP-NVUZN9-HDSCLF-XTQQRE-MRA9A3

Guide:

1- Rename IMOPARA2.iso to IMOPARA2_0.mdf
2- Download .mds file, extract and put it in same folder of IMOPARA2_0.mdf that you rename above
3- Mount .mds file with Daemon Tools latest version
4- Use Installer Key when you are installing the game
5- Use Serial when you start the game
6- Happy playing ^_^