The Demon King Fragments And Haunts

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"You kids are exceptionally strong because you have been defeating strong monsters since being very young, the Goblin Army, remember it? you killed hundreds, that also adds up into the progress of your Physiques and Magic Circles." Said Shade.

Huh, so it is not only my System, but certainly, my System is still a big factor of my growth and power, which is also even more ridiculous than the ridiculous growth of Aquarina and Zack.

"Is that so?" Wondered Zack. "So every monster we killed in the dungeon, did they also boosted our growth speed and strength?"