"Phew, I'm never doing that again." He looked at the goosebumps all over his body and the hair standing up on the back of his hand.
Suddenly, the voice of the magician Bass could be heard from outside the secret room.
"Is something the matter, sir?"
"Oh, nothing, just a small mishap during my training," Casio explained casually and quickly dismissed Bass in a few words.
He glanced at the mess on the ground, just about to clean up.
"Hmm?" Casio closed his eyes and sensed the changes in his body.
After a while, he opened his eyes with apparent astonishment.
Without any reason, he had attained the basic level of Heart-eye Secret Technique.
'Heart-eye Secret Technique: Left-eye beginner (three levels in total)'
"Was it caused by the intense pain just now?" Casio speculated reasonably, "The stimulating potion intensely stimulated the skin's senses …"