Thank you! :D To unlock Malitiose’s route, you can’t pick any romantic choices with the other ROs during the first chapter, save for Lotár’s. Similarly, if you want to pursue Lotár, you need to steer clear from Mirren’s and Rez’s heart marked options. Additionally, your alignment changes some of the romantic and non-romantic scenes, though it doesn’t lock you out of any route. Hope it helps!