C748 The past of the Siblings

Gu Tian looked at Gu Ni, who was about seven or eight years old, and then looked at himself. He suddenly realized that he had also returned to being ten years old.

"What's going on?"

Gu Tian frowned. Obviously, he did not understand why it was like this.

"Brother Tian, what's wrong with you? Why do you look unhappy?" Gu Ni saw Gu Tian frowning and could not help but ask.

"Nothing..