Well, now that I've taken a longer look at what's going on here, here's what I'm seeing.
Rumia can kill 8 outright right now.
Meiling can also do this to 7, but she might miss.
Anyone but Nazrin or Byakuren can kill 5. I'd prefer Tenshi, because she needs the EXP, has WTA, and can just slide down one space.
I can't go on offense this turn, I need to drink some tea.
This leaves Alice, Nazrin, Reimu, Murasa, Cirno, and Youmu. That's more than enough firepower for 6.
And if Tenshi, Murasa, and I end up on HIJ7, we can wall that last soldier off.
Of course, a whiff would totally screw this up, especially if it's the archer who lives.