Su Ping nodded.
The old expert didn't lie to Su Ping. After all, his species could be found in middle-rank cultivation sites too, which were probably behind other green glass planets.
However, the middle-rank cultivation sites weren't protected by Ancestral Gods. Who built the green glass barriers?
Or maybe, it wasn't built by Ancestral Gods?
Su Ping thought about it, but held back his urge to ask. It would be inappropriate to address such a sensitive matter after they had barely become allies, as it was no different from asking a country about their national defense secrets.
"What if I accidentally pass by another green glass planet and find someone else instead? There might be a misunderstanding," said Su Ping.