Ye Yuan's breakthrough at just reached a critical juncture when he suddenly felt the essence energy around him diminishing and was almost unable to support his breakthrough anymore.
The occurrence of such a situation made him feel rather baffled.
Opening his eyes slightly, he saw someone else besides him. This person was apparently breaking through too.
The other person's essence energy tempest was much stronger than his. It was clearly at the strength level that only a Crystal Formation Realm martial artist should have.
Ye Yuan understood the situation very quickly.
Although this person looked very unfamiliar, just by looking at the other party choosing to break through beside him, he clearly had malicious intentions!
Towards guys like this, Ye Yuan would never be courteous.