For the Fierce Ghost Association, kill!

"3, 2, 1, detonate!"

With Cain's command, a series of explosions erupted instantly.

Thousands of Evil Ghost Association members were engulfed in the blasts, torn to shreds in the blink of an eye.

Of course, these explosions were purely physical in nature; the Fierce Ghost Association hadn't become so extravagant as to employ actual ghost bombs, a truly scarce commodity.

In the horrifying world, there was a dreadful rule: aside from ghost energy, no other form of attack could genuinely harm an ghost. 

Guns, bombs, even nuclear weapons, and what would logically restrain ghosts, like lightning – unless these things themselves were ghostly, they couldn't inflict real damage on the evil ghosts of this world.

So, walking down the main street of Fierce Ghost Street, gory scenes were common. A ghost, dead from some illness, might carve up its body with a kitchen knife to scratch an itch, blood pouring everywhere.