'I Chang'an' is a jewelry store opened in a busy city. The store has various colored gems, such as brilliant rubies, deep and quiet sapphires, mysterious and elegant emeralds, rainbow-like tourmalines, crystal clear garnets, etc. The prices are not expensive, and although they are not high-purity gems, they are exquisite and unique in style, and each has its own merits. There is an endless stream of people coming to buy. Every piece of jewelry sold has a plain inscription that reads, "May I live in peace and prosperity forever."