Under the Curtain: I Contain Anomalies by Editing Reality

Late at night, a black book was forcibly bound to me, giving me the ability to modify reality, at the cost of erasing a little from the "story" every time I used it. An anomaly containment company called "Curtain Technology" handed over a contract: be contained, or become a containment. I chose to hold a pen and join the job, using this dangerous ability to find answers to the world under their curtain called "Protect the World."