So the arranged marriage route is looking ever more likely. I remember somebody speculating as much a couple chapters back, and it could explain some of Minase’s behavior so far.
Meanwhile, Takt is either jealous or gay, maybe both.
I just started reading this manga. I'm glad I'm not the only one who thinks Takt is actually after Riku and trying to ruin his chances with every girl around him. The arranged marriage plot would make sense too.