So how many ending this game have? I play Japanese version so I don't know the story. I unlocked 3 endings so far. First one is 4th ending with the shop girl, basically just need to agree have sex with her to get this ending, then I got bad ending by refuse the shop girl while being mean to the heroine (force her become whore by select minus option only), and good ending by refuse the shop girl while take care the heroine (select plus option only).
So I guess I missed one endling at least, however for some reason I unlocked full CG already, weird.