There are many commercial buildings on the busiest avenue in the center of Taipei. Among the many skyscrapers, there is only one seemingly ordinary five-story building. Although it occupies a small area, it can gain a foothold in the financial center where space is extremely expensive. Its strength cannot be underestimated. What's more, this building belongs to four charming women. They are like a mystery. No one knows where they come from. They opened a jewelry store in Taipei and made the name of the store become a household name overnight - "Phantom".