It is a high-quality oolong tea that can only be produced in a limited area of Taiwan. The tea leaves bitten by insects called unka are carefully hand-picked and finished with skilled tea-making techniques to create a gorgeous aroma reminiscent of fruit and nectar, as well as a mellow and elegant taste. Because it requires time and effort and advanced technology from harvesting to tea making, it is known as one of the most valuable cups of Taiwanese oolong tea.