Ning, named after the Moon Goddess, unknowingly served poisoned tea that killed her mother and greatly harmed her sister. In their kingdom, a legend spread about the Shadow - an unknown person who, using magic, poisoned the tea of most of the inhabitants. One day, Ning learns about a competition for the title of the greatest Shannon-shi - masters of the ancient and magical art of making tea. As a reward for victory, they promise to fulfill any wish. For Ning, the only chance to save her sister is to take part in the competition. However, finding herself in the palace among intrigue and ruthless rivals, Ning faces an even greater danger. And only a mysterious young man with a dark secret can help her...