Purchased Mikio's route and no matter what options I select, he never shows up at all. I feel like I've tried everything but I just get premature endings :S Any help? Thanks!
Mikio's route piggybacks off of Hayato's route, so you need to get onto Hayato's route before Mikio appears. After that, you'll be on a brief "kitsune common route" and your choices will affect whether you proceed to Hayato's route or Mikio's route.