A rare thing
I heard that there is a strange thing in the world, called "Tert Butyl Chloro Acetate". This thing is extremely unique, and it is unique among all kinds of substances.

Its nature is strange, and its color and taste are different from ordinary things. Or it is made by various wonderful techniques, in a delicate room, and tempered by a skilled craftsman with strange methods. The material used is either collected in foreign lands of mountains and rivers, gathering the beauty of heaven and earth, and combining water and fire, yin and yang, to obtain this strange thing.

The use of this thing is quite extensive. In the craftsman's art, it can be used as a subtle aid to make the things made more delicate; in the doctor's art, it may have a miraculous effect, providing a wonderful method for treating sinking diseases; in the way of Fang's research, it is also an important evidence to help him explore the unknown.

However, it is not easy to get this thing. One is that the materials he needs are rare and hard to find, and they are rare in the mountains and rivers. Second, the production method is complicated, and the previous efforts will be lost if there is a slight mistake. Therefore, those who can obtain this thing are regarded as treasures, and they are properly hidden. They are not used lightly unless they encounter major or important events.

Although everyone desires it, it is very precious, and few have been passed down in the world. Occasionally there are rumors, all of which attract the attention of all parties. If you want to see its true appearance and explore its mysteries, those who obtain it will hide it as if it were hidden, and the secret will not be revealed to others, lest it be lost.