C769 Moon Child and Heartless

"No one would have thought that the core of the Purgatory Envoy would actually be a heart formed from a Soul Power."

Gu Xuan observed this heart carefully. There were many Striae s on top of it, it was extremely mysterious.

Gu Xuan frowned, what's the use of Striae?

~ Who knows why, but these Striae, in Gu Xuan's eyes