Its pretty much a life simulator. Some of the girls already have bf/gf or are married. You can steal them or make them cheat. All the single girls can hook up with other guys if you dont get them first. If you do get them first but treat them bad they may cheat on you and depending on the girls personality they may be cheaters to begin with so depending what you like you may want to stay clear of those girls. Most of the girls have different personalities and learning them is winning half the game.same question
The overal structure and range of different girls and relationships you can have or lose make it a very good game. But if someone is just looking to build a dream harem and have no other guys touch any LI this isnt the game for them. Its alot of fun when it works