The plot is original, the power to turn stress into magic, yet the author failed to realize that this premise is very hard to be turned to a great story
first of all, how do you measure stress? is there any measurement unit for stress? then how do you balance power level from this obscure element?
by this logic, the protagonist should be a really negative person, maybe near the point of suicidal, but no he's not, he's just a shallow random character
Even more, before the concept of turning stress into power fully explored, suddenly the protagonist develop the power to heal stress, and after that this "stress" just seems to act like willpower, thus the initial concept is gone
with this plot you expect to see some interesting characters, yet what you got was some shallow characters, random powers, ridiculous development, and the worst of all is you can't relate to any of the events, you can't feel the tension, but at least the art is nice
i have the feeling it will soon to be axed