The few Core Disciples from Taiqing Academy only dared to show their dissatisfaction with Lin Yun and Wei Yunhang sitting side-by-side because they had no idea Lin Yun had already broken through to the Celestial Spirit Realm.
What did it mean for a Demon Fiend to break through to the Celestial Spirit Realm? While it couldn't be said they were invincible within the Celestial Spirit Realm, it was fair to say that throughout the entire Eastern Domain, no one could kill a Demon Fiend who had reached the Celestial Spirit Realm unless a supreme expert of the Spirit Realm made a move.
After all, Demon Fiends possessed not only monstrous Combat Power but also equally freakish survival abilities. Without absolute power to crush them, or unless another Demon Fiend attacked, it was incredibly difficult to kill them when the power gap wasn't significant.
