Mutual Destruction, Xuan Zi Holds the Rear

Outside Sun Moon Royal Academy, the night was as black as ink.

With Xu Guozhong acting as their guide, Xuan Zi and Tang Yin's hastily formed plan to infiltrate the underground armory now had ample assurance.

After inserting the Purple Grade key, the metal cabinet door opened, revealing a straight passage wide enough for several people to walk abreast.

Ten meters down the passage, three closed metal doors appeared ahead.

Each door had number buttons from zero to nine embedded in its center, with a keyhole beneath them. Clearly, these Soul Tool doors required dual verification by password and key before they could be opened.

Uh...

Tang Yin frowned, a trace of gravity flashing through his eyes. Such intricate Soul Tool arrangements had already reached the limits of his knowledge.

"What a hassle. Normally, shouldn't having the key let us pass all the way through? Why are there still mechanisms like this?"

Xuan Zi, standing beside him, was secretly glad.

Fortunately, he had had the foresight to capture Xu Guozhong instead of killing him outright. Otherwise, even with the key, they could only have forced their way through now.

Although this second line of defense seemed capable of stopping only Soul Masters below the Soul Emperor rank, and Xuan Zi could easily break through it, the Soul Tool mechanisms further inside were another matter.

After all, Soul Tool Masters excelled at laying ambushes in advance and fighting prepared battles. Even a Titled Douluo had to proceed with caution.

Especially since Mingde Hall, the headquarters of Sun Moon's high-level Soul Tool Masters, was not far from here. Barging in recklessly would definitely alert them.

When that happened, never mind completing the mission—even whether he could safely get Tang Yin out would become a problem.

"Behave yourself. Tell me, what's the password?"