I love this game so far! too the character designs to the story! I also really like the fighting mechanic i i knew u could technically do it with rpg maker but i usually see it it rpg type gameplay so this was a nice change of pace!
It is a plugin, https://sanghendrix.itch.io/rpg-maker-action-combat-rpg-maker-mz-plugin
Honestly, one of the top 5 plugins I've used, and the best for combat I've ever found, pricy but worth it for sure, especially with the amount of tutorials.