Hi, Blade175
Game was originally made for straight playthrough with one girl as your love interest. But if you want more content - we have game mode which allow multiple love intrest in our game.
You need switch it by "Cheats" check box ("Harem" mode) in game preference. This thing are switch off cross route choices for girls and allow players to see all content. Every update we are work on it(it's not just off cross lines - we have special dialogs lines made special for this mode), but we recommend use it for second playthrough. It's sill under development (thats why we hide it without explanation).