C421 Unexpectedly It's Her

I started to think carefully, from the Gong Yue back then, to the Gong Shu in the image when the Fallen Spiritual Bead appeared, to the time when we came to the Upper-East-Gate, to how we came in contact with Gong Shu, the rest of the Gong Clan, and the walls of photos in the Gong Shu's House …

Vaguely, I figured out a lot of things and came up with a pretty bold guess..