Tourmaline is also known as Bixiaxi. Under the crystal stone, hidden is everyone's desire for power. When "Qingya" becomes a witness to the power of the world, perhaps as you said, blue is the most beautiful color in the world.
This article is a short story. The heroine is neither smart nor stupid, and the plot is neither novel nor old-fashioned. The only thing I can guarantee is that this is definitely not a trap~~~!