Even though I didn't aim one bit, it turned out that my Libra did go straight for one of the goblins' heads, hitting it so hard; the ugly monster immediately fell onto the ground and disintegrated into thousands of polygons.
The other goblin, seeing what had just happened to its buddy, it let out a cry of fear, yet, still ran toward me while swinging the club in its hand.
Stupid AI...
Hence, I shouted "Libra!", summoning the scales weapon back in my right hand; this time, I aimed at the goblin's head.
*CRACK*
When the monster finally got close enough, I hit it right in its cheek, killing it on the spot.
[1st Round: CLEARED]
[Stage clear: 1/7]
As the system quickly announced my first achievement, I didn't even have a single drop of sweat on my body.
"Sweet..." mumbled me before spinning my weapon one time.
[30 seconds before 2nd Round]
It seemed that between each round, I'd get some time to rest.