I’m surprised to see this many people vote Kurugaya. Personally, I borderline hated her throughout the whole game, and the archetype they used for her honestly just pisses me off. I’ve since come to somewhat like her, but it wasn’t until long after I had played Refrain that I even considered her worth looking at in depth.
Mio, on the other hand, became my favorite character literally seconds after her introduction started; and her route was, to me, miles ahead of the others.
Also, bonus points to Saya, Komari, and Haruka for making me smile almost every time they came on screen.