Heaven's Feel
Heaven's Feel highlights "the friction between real and ideal"(ComiPress), describing how it is fine to have ideals, but to be prepared when the world makes it exceedingly difficult to keep those ideals. Shirou starts out the same as in the other two routes, the same, idealistic fool, but as he continues through this route, he is forced to give up his ideals to protect those he loves and who are in front of him, Sakura and his little sister Illya. Their world is dark, Sakura becoming more and more sadistic as the game progresses and the Grail's corruption continues to influence her, and Shirou is forced to cast aside his long term goal of being a hero in order to save those he loves that are in front of him. The struggle never ends, and real life and one's ideals will constantly disagree, but that is how it should be. This is how humans learn, and is what makes life a struggle worth having.