Ye Xiao drowned when he felt the extremely terrifying aura of the demon in front of him. He also became extremely serious because the demon in front of him was extremely terrifying and was not someone he could go against easily.
With his current strength, Ye Xiao could fight against and kill an Early Stage Immortal Emperor Realm martial artist. With more effort and facing the danger of losing his life, he was confident that he could also fight against a Middle Stage Immortal Emperor Realm by using all of his trump cards.
But if he was facing a Late-Stage Immortal Emperor Realm cultivator who was just a step away from the Ancient Immortal Realm which was the next cultivation realm of the Immortal Emperor Realm, he was not confident. He might lose his life facing someone like that.
The situation in front of Ye Xiao was exactly like that. If he was not willing, he has to face this demon and give his all to fight against this demon and save his life.