I also started this game on Coach Grifter route, played multiple times and he's still my favorite character in a visual novel.
About Darius is it really a romance and feel good route? I always hated how pushy/pervy he was, tried to play his route a couple times but never made it past day 10... I didn't even know he got so many days I just ignored his updates. Shit now I have to give him a another chance 😂