Hey there Ramose Tsimbina, I got your game for judging so here are some of my thoughts. The mostly black and white artstyle you chose was a great choice, though I wish you had stuck with it in the menu and battle background as well. Leaving just a few things as the color red like Duncan's eye would really make it stand out. The story was mysterious, but gave enough for me to follow along. That said, I do wish more was explained. Maybe the skeletons scattered across the maps could've shared more clues.
Battles worked well, though as an absorber I was hoping to gain strength and skills from being attacked. So only getting new skills at shrines was disappointing, though I'm sure you chose to do it that way due to the contest deadline. Like everyone else, I found the slimes to be annoy to battle. Poison was taking so much of my health each turn that I was better off avoiding as many slimes as possible. If Duncan could learn poison resistance, or if slimes dropped Antidotes, those battles would have felt more worthwhile.
The ancient demon battle was pretty anti-climatic, since I could use Big Smash every other turn to keep him from hurting me and then Toxic Laugh to poison him to cause tons of damage. I'm not sure if you meant for it to be easy, but after fighting for my life against the slimes the ancient demon just felt like a step backwards combat-wise.
The shadowy pasts were where the game really fails in my opinion. I understand what you were going for, but since I never really found out about Duncan's past it felt more like a punishment for those who can't react quickly. I almost got stuck at the same point as bgillisp, but luckily realized the trick to going to one side. Instead of just getting sent back to the start, it would have been interesting if getting hit triggered a cutscene from the past or a battle against your past self (maybe you're supposed to run, but winning would share some more backstory).
Overall, you had some interesting ideas for this game, but it felt like it just needed a bit more development time to really reach its full potential.