itch.io

I personally beat it on my first try, I kept going to Yoru and training with her until I managed to beat her once, she gave me a skill called "blade sweep" and i only spammed that, only requires 1 bar, you get 1 per turn anyway.

My stats were 250, 109, 135, 100, and i managed to do it just fine, did you beat the forest training with Ami, both of them? as if you beat both of the forest training she'll learn a good healing spell, requires 5 bars though, but fully heals you.