This is the story of a young man who was abused by a yandere and was cured during a journey.
Rin is just an ordinary boy who occasionally gets a little bad. Because of a hero saving a beauty, he was entangled by a yandere girl. As a result, the person he hated was stabbed, his classmates were attacked, his best friend was killed, his parents were in a car accident, and he was killed. So the boy expressed his desire to take revenge on this cheating world, and was gradually cured.
This is the abbreviated version
If there really is a god, please tell me, why would he give us such a tragic fate?
, Why should we take away everything we have
Why are you so cruel to us, even though we didn't do anything?
Why should we be punished like this, watching the people we cherish killed, the things we truly love destroyed, and our cherished dreams destroyed.
Why, there are obviously so many bad people roaming freely in this world, but we have to suffer this kind of treatment?
Why don't you give us any tenderness?
We will never admit that this kind of life...
This is the literary version.