 There are four main plot lines in the original Windows release that the player will have the chance to experience , one for each of the <unk> in the story . Throughout gameplay , the player is given multiple options to choose from , and text progression <unk> at these points until a choice is made . Some decisions can lead the game to end prematurely and offer an alternative ending to the plot . To view all plot lines in their entirety , the player will have to replay the game multiple times and choose different choices to further the plot to an alternate direction . In adult versions of the game , there are scenes depicting Kanata and a given heroine having sex . 
