Bureau 749: I, the Walking Containment Object

That day, I was sorting out old things in the archives. I found a household registration book from the 37th year of the Republic of China, and I wrote my name in it without permission. From then on, I saw another side of this city hidden under the neon lights—— There is always one more person in the elevator late at night, "The Thirteenth Step"; The wedding dress of the Republic of China, which is bowed in the old house and covered with silver needles; The "other self" trying to replace me crawled out in the mirror... Until that rainy night, a group of people wearing black uniforms with national emblems on their chests came to me. They called me a "walking containment object" and took me into an institution that had never been open to the public - Bureau 749. Here, I learned: The household registration book bound to me can "register" and contain all weird things. And my identity has already been marked on the file as: "No. 749-01: Suspected humanoid anomaly, danger level - to be determined (temporarily controllable)" Now, they let me, the "monster," hunt other monsters.