Such a gorgeous game! Great palette, extremely beautiful pixel art and delicious sound design. I clicked my way through the first three locations, but I have to admit that if I didn't read other comments I would have not figured out there were items. It still took me a little bit to find where to buy them even with the knowledge. I guess the stats are rock-paper-scissors and there's some contributing and some subtracting from the success rate? With that (potentially wrong) realization and items on my side, I went to end the demon straight away. I condemned to death 3 of my heroes by drugging them and doubling their stats, while turning the only surviving one (with bad stats for the task) into a chaos imp, the only survivor incapable of telling the tale of the heroic sacrifice of their companions. Grim!
Impressive work, well done! @Kaishido, I'm now a fan.