C1487 The Madness of the Underworld
The aftermath of the battle between Chu Feng and Lord of Underworld... It's not that big.
Both of them had very good control over their strength.
When the power collided, it would inevitably dissipate.
Not including Hades' Knights, the range of the aftermath of the battle was only a few dozen kilometers. Not to mention comparing it to Underworld, even in the underworld, even on Earth