Okay, so maybe I phrased the question a bit weirdly. I wouldn't want the game to be an actual dating sim, but maybe a few ambiguous questions or choices that could build up points and leads to the person that would end up with Sora. If you get more points for Kairi, he would end up with her, and vice versa for Riku. There wouldn't be a straightforward question asking who the player prefers. There could also be a way to avoid getting him into a romantic relationship with either of them and just focus on the main plot.