C352 He Danced in the Starry Sky.
In the Eon Training Camp, the ones who interacted with Gu Xian the most were the little ghosts.
In fact, if one were to really talk about it, the existence of the Eon Training Camp was actually due to the Black Hole.
The Black Hole was the intelligence system of the Eon Training Camp. It was the most advanced digital miracle in the Eon Empire back then