Killing the Dead Forest
Rainn had expected that this battle would not end quickly. Even with the strength, he had gained up until now he still felt a little troubled in the beginning.
Rainn stood up and looked at the huge Ghost wielding an equally large sword. His body was still slightly burned by the flames he gave off. The ghost that had just knocked him down flew towards the Ghost Soldier and entered his body.
After that, what happened was that the Ghost Soldier's body recovered and the flames that burned his body disappeared.
"Ah, so this is how it is," Rainn muttered.
This forest might be a gathering place for tens or even hundreds of earthbound spirits. And that Ghost might be some kind of ruler in this place. He used all the lesser Ghosts to regenerate his own body.
Rainn didn't think that was possible. But it turns out that there are many things in the supernatural world that he still doesn't know.
"Anyway," said Rainn. "What matters is that I just have to kill you."