Showdown.

'Where is he…' Isaac thought to himself and still thought that his opponent was a male.

He has rarely seen a female who is in shooter class, which made him think automatically that his opponent was a male.

He had waited for half an hour already, and his opponent was still nowhere to be seen.

Not even a sound.

Isaac knows that the twigs in front of the entrance were useless; his opponent must have already gotten rid of them, so they won't alert him of his presence.

In the past half an hour, Isaac had a lot of time to think.

He now understood the skill level of his opponent, and it was at a level that he can't comprehend.

'He is using a fear technique…' Isaac narrowed his eyes and understood what his opponent was trying to do.

He will be trying to make him fearful, which will cause him to lose his composure and concentration.

With enough fear, he wouldn't be able to function properly and maybe will even run out of the cave in a fear-filled state.