I Paid the Price in My Dream and Lived in the Weird Ancient Times

I traveled to weird ancient times and found that I could dream about changing things and technology. But every time I get something, I have to pay the price. If you change rice, the chicken in the house will die. Changing the knife, the plowing ox became lame. Change the water tanker, the well water is dry. In exchange for saving people, the benefactor becomes blind. Later I realized that I was not a time traveler, but a reincarnation experimental subject. Turns out I wasn't the only one chosen. There are four other "traders" like me, who have either turned into bones or become madmen. And those who hunt us are not only the "rule hunters" of this world, but also the cold institutions from modern times that treat me as an experiment. When my friend who had been pretending to be crazy for two years took off his mask, and when the "door" between the two worlds opened again, I discovered that the biggest price of this transaction had just begun—— This time, I will sacrifice my life to change the truth.