Last night, Luo Yu had browsed a resource encyclopedia online and learned about quite a few Fire-Type Resources.
Naturally, he recognized what Su Qian was holding: a three-star Fire-Type Resource, the Flame Demon Core.
It was a piece of outer shell shed when a Ninshu-level Flame Demon evolved into a Shadow Guard Level Flame Demon.
And it was one of the shell's most concentrated pieces of essence.
It was about as rare as the Divine Pupil Essence.
Luo Yu immediately concentrated chakra over his palm, then took the scorching Flame Demon Core in his hand.
Pretending to put it into a scroll, he used it up.
The Flame Demon Core vanished into thin air, but neither Principal Yue nor Su Qian noticed anything unusual.
Uchiha Flame Formation level +1!
In an instant, more detailed knowledge of how to cast the Flame Formation flooded Luo Yu's mind.
With its techniques refined, the Flame Formation's range and strength both improved significantly.
"Then I won't disturb you two any longer." Su Qian stood up, eager to leave this den of trouble.
He was also thinking about how he would explain things to Su Yefeng.
Luo Yu looked baffled. "Come on, man. What are you thinking?"
"You're a Shadow Guard, after all. How could I let you leave for just one Flame Demon Core?"
Su Qian froze. You could've said that earlier!
He had gotten his hopes up for nothing!
Are you messing with me?!
Principal Yue nodded in satisfaction, looking as though his pupil had learned well.
He knew it. There was no way Luo Yu would pass up a chance to milk someone dry.
Luo Yu glanced at the system panel.
Good grief!
The next level of the Flame Formation required a full ten Flame Demon Cores.
The material cost