An Old Threat

"They did? Then this creature is nearly impossible to kill," he responded, second-guessing whether it was worth attempting to go there with such a creature lurking around. 

The document mentioned its weak attack power compared to the other numbered, so he didn't need to fear being killed by it. 

However, he wasn't so bored that he would attempt to hunt an unkillable and annoying monster just for the sake of it. 

'Would my True Death even work?' he pondered, recalling his skill that had managed to defeat the three-headed dog known for its rapid regeneration.

'This thing could be a good test subject to push the limits of my skill,' he added, recognizing the potential benefit of hunting it down. 

He continued to read the content, but the more he read, the more he felt that something was wrong.