C448 In the Hands of the Nine Great Experts

When Sun Chengye heard what the old man said, he was shocked. "We still need time to prepare to open the advanced teleportation channel?"

The old man nodded. "Yes, although the advanced teleportation channel accumulates sufficient energy every ten years, this energy is usually in a sealed state to prevent it from flowing out again"

"Thus, when the higher-tier teleportation channels are opened