This is the Prototype version of Kitsu's Destiny, available as a DLC, so you can look into the game before the engine change to RPG Maker MZ as it was originally on VX Ace.
It has some very interesting things, did you know the Dark Lady was a Lord? Did you know it was EVEN MORE LINEAR?
Honestly, this is the price of a cup of coffee, and you might finish it before you beat the DLC. It's just an extra support thing.