Zhou Tian would indeed require some time to break through the Vermilion Bird's defenses by himself. However, we must not forget, Zhou Tian now had an extra Demonic Slaying Weapon. Originally, Zhou Tian planned to use it as a surprise weapon. But under the current situation, where the Vermilion Bird utterly avoided a direct confrontation, Zhou Tian thought it would be better to simply use the short sword in plain sight than keep it hidden.
Consequently, as Zhou Tian rushed at the Vermilion Bird, and the Vermilion Bird put up a defense, Zhou Tian's Demon-Slaying Short Sword pierced the defense effortlessly, rendering it ineffective.
The moment the Vermilion Bird was thinking about its next attack on Zhou Tian, it had not expected Zhou Tian to be right in front of it. Capitalizing on the Vermilion Bird's unguarded moment, Zhou Tian's Demon-Slaying Short Sword penetrated right into the body of the Vermilion Bird.
