My computer goes balls to the wall with this game. Fans running top notch. fix

finished the whole fights over 10 times didn't see him even once

What does "Fill all positions except the standing one with Ryuka" mean? I'm guessing the player character is Ryuka, but what do I need to fill the other tiles with?

I've been trying for forever and I can't seem to get it no matter what

how? it blocks all tiles