Let's turn back time a little.
The Holy Spirit World.
The Frost Empire.
Red Ghost descended from the sky and landed in the imperial palace.
Everyone, including the Emperor and Empress, immediately bowed in greeting.
"I've killed that boy named Rod," Red Ghost said.
Everyone raised their heads in confusion.
The King asked in bewilderment, "My lord, weren't you going to assassinate the King of Roland?"
Red Ghost shook his head. "The King of Roland is an opponent we understand completely. That boy Rod is the real variable. I had to kill him immediately, before he could do anything."
"My lord, the Roland Empire is currently locked in a stalemate with us. More and more powerful fighters are joining the war on their side, and we can't hold out much longer," the King said.
The Empire Chancellor said, "In addition to the world where monsters have vanished, which you discovered, my lord, we've found another new world."
"Oh? What kind of world?" Red Ghost asked with interest.
"A world destroyed by a plague apocalypse. It's merging with the Holy Spirit World," the Empire Chancellor replied.
"What do you think?" Red Ghost asked.
The King said, "There are too few of our people left in the Holy Spirit World, and we can't contact those outside. With only our forces, defeating the Roland Empire's powerful fighters will be difficult."
The Empire Chancellor said, "If we can direct that plague apocalypse to descend on a large area of the Roland Empire, our chances of victory will increase considerably."
Red Ghost said nothing, only pacing slowly.
The entire palace fell silent. The Evil Ghosts who had possessed their hosts waited quietly for Red Ghost's decision.
After a long while, Red Ghost finally spoke.
"The plague apocalypse... Do we have any records of it?"
A