After hearing Mo Yuxin talk about the black thunder, Su Yubing immediately remembered when they saw a wisp of black thunder quietly floating in the 'Thunder Elemental Territory' and it seemed like a harmless little thunder. If they didn't know the horrors of black thunder, probably no one would think that a small wisp of it could kill a normal golden core Cultivator within seconds.
After learning her purpose, Mo Yuxin and Su Yubing first began to observe their surroundings to see what surprises this 'Thunder Elemental Territory' holds.
And the first thing that was extremely eye catching was the densely packed thunders in every single part of their surroundings.
These thunders range from extremely small thunders without much power to extremely large ones which keeps flashing in all over the surroundings.