The two upper Deities were not actually wary of Yusuf Zuck; they were wary of the white cat. However, the white cat cooperated with Yusuf Zuck. As Yusuf Zuck charged forward, it used its Divine Skills to bewilder the duo's divine souls.
Therefore, when the two upper Deities were caught in a hallucination and daze, Yusuf Zuck's Epoch Etching Blade had already swung down.
The Epoch Etching Blade is the sharpest weapon in the world, unparalleled in its sharpness. So, although Yusuf is only at the Immortal Emperor level, he can easily kill two upper Deities with the Epoch Etching Blade!
Indeed, there's no need to get close. A mere flash of the blade is enough to kill instantly. If in close quarters, slicing personally with the Epoch Etching Blade could even instantly kill a Divine King!
Yusuf has the confidence and assurance. That's why he never cared about this group of divine beings before.