Aaah, yes, I see what you mean :'D Okita's voice actor is also my favorite since he voiced Gorou in MAJOR (an inspirational sport anime) --But the fact that he's sick is just... T^T and the epilogue is an open ending waaahhh!! I dunno, I wish there's something solid we can do for him Q_Q
And yes! Yamazaki's route is very sweet >///< his route turned out pretty awesome and the fact that they ran a clinic in the end also clicks really well!
I'm having a hard time deciding which one is my fave lol, but Kazama's route is still the saddest one so far Q_Q