From MC's Perspective:
I started reporting about the experience that I had in the secret land. Especially about the weird monsters. Including the Tree Monster and Unknown Bug species. After doing that, I told about the snake monster's lair.
Where I found an opening to the secret underground. I thought of it multiple times before telling him about the dark liquid. Which is the reason for my physique breakthrough to Commander Rank.
A few minutes later,
"Dark Liquid, you say," Austin uttered in a surprise. The next second, he remembers something similar.
"If it's that liquid then nobody can use it except Zack," Austin thought.
Now, he understands why Zack was able to do it. All because of the blood element and blood element method. If others consume the blood energy of ancient monsters, it would poison their body.
