Going to put my ideas here, so don't do anything rash so far
Alice should tank up the mage, but move back as far as possible so it's effectively out of the battle
So Alice should move to B2
I'll move to A7, as I can tank an axe, a sword, and a bow with some tea, easy. Someone with a sword should move to A6 to tank up the other fighter, preferably Nazrin or Reimu. Also, Reimu should drink up.
Murasa should go to A5 as back up, Nazrin to A4, Kogasa to A3. Next turn, Kogasa should take down the mage on the next turn, and we can have Alice focus on the magic squishies next turn. This turn is just gearing up for survival and the next turn is mounting the offense.