Doing Special mission again

From MC's Perspective:

Trial Site,

Seeing that the tree roots are tenacious. I have decided to use the lightning attack.

"Sword Divide"

A beam of purple light crossed in a straight line and struck the tree monster. 

Boom!

There was a loud noise. The whole tree was caught in fire. At the same time, the roots stopped advancing towards me. In the blink of an eye, the tree monster reduced to ashes.

"Class-5 Monster," I said in my heart. I realized that it was rather easy to take down the monsters by using lighting techniques.

After dealing with the monster, I moved forward.

Time passed,

I avoided killing the rare monsters. But I didn't spare the blood thirsty ones. When the allotted time had just one hour remaining.

I made my way back toward the dark door. 

Soon, I reached the spot. Standing in front of the black door, I waited for the door to be opened from the other side.

A few minutes later,