When our somewhat lovable (stupid) MC arrives at Sabrina's home after finishing up University, (his dear old friend), he's already wondering what it'd take to become the MC like in one of those crazy harem games given all the crazy beautiful women in his life, well, after finding a mythical 'walkthrough' for life hidden in his bedroom, he now can!
In order for you to be able to install this game, you need to enable (allow) installation of applications from unknown sources (Unknown sources) in the phone settings. Usually this item is in the Security section