You know, when you think about it Reina is basically a more violent and knowledgeable version of Mieru-ko-chan's Julia or a less disagreeable female version of Enigma (or not, her attitude on money is basically the same). But she may not be able to help Miko. Miko's problem is that she can see the utterly horrific eldritch abominations that other psychics can't; things that snack on the kind of spirits Reina beats up on a regular basis. Despite the fact that on the few times she'd had to deal with them directly she actually managed well, Miko is utterly scared of ALL spirits because she assigns every single one of them with the same threat level as drum ghost or Inari snack no.1. Reina can beat up all the spirits Julia dismisses out of hand, but can she deal with things Miko can see? It would be interesting if this manga goes in that direction eventually.