Chapitre 91: Endurance

[You do not have sufficient endurance to upgrade.]

These were the notifications that entered his mind. Apparently, after the long and painstaking process of the metal essence extraction, a certain qualification was actually required to upgrade his core.

"What the fu*k!!?"

If he were not out of energy due to the extraction process, he would have loudly uttered a bunch of curses at the damned notification already!

Viktor slowly took deep breaths to calm himself and conserve his energy, and when he finally finished letting his indignance dissipate, he took another deep breath and started thinking about the matter rationally.

"Sufficient endurance… Djinn, is this thing talking about the endurance stat? And please don't tell me you don't know, I don't want to hear anything remotely similar."

Viktor's last sentence rendered the Djinn speechless for a moment, but in the end, the Djinn still told him what he knew.