Hello!

Sorry if this is the wrong corner for my question but can someone explain me how this game http://www.anime-sharing.com/forum/h...82m%5D-613688/ works?
I have played this game for so many times now and all I get is the main route. Even if I'm chosing the other POW at the beginning,
it seems like there is no difference. Please help me (Sorry for my english)

Greetz