System Bestows me with Immortality, Living on to Eventually Become Invincible

The medium-sized Five Elements Teleportation Array was quite large, several times bigger than the arrays they had used before. No one knew how many layers of formations Black Bull had stacked on it.

A circular formation sat at the center, surrounded by massive Five Elements Stones, each half a zhang high. The teleportation array was also protected by the Five Extremes Formation, Black Bull's proud creation.

It had been modified to integrate offense, defense, and concealment. Even divine sense couldn't penetrate it; any forced intrusion would trigger the Destruction Wind in retaliation!

They stood at the center, and Black Bull waved the formation flag. Instantly, the entire island sank slightly, emitting a dull rumble.

Unnoticed, a drop of cold sweat slid down Little Chi's face. The commotion was quite significant; when they had used the cross-state teleportation array in Da Li, it hadn't been this loud.

Buzz—

The divine light of the Five Elements illuminated the surroundings, and a strong wind blew from the Five Elements Stones, sending sand and stones flying. A spatial pulling force emerged.

Chen Xun remained calm, glancing at Black Bull, who was still controlling the formation, with absolute trust in his eyes.

A stick of incense later, their bodies tensed as the power of the Five Elements bound them like chains. Little Chi's expression turned extremely ugly; the power of the Five Elements was too suppressive on spiritual energy.

The divine light of the Five Elements flickered, and they vanished instantly.

After they left, the Five Extremes Formation began to operate automatically, deeply hiding the teleportation array, leaving no trace. The desolate island returned to its quiet state.

...

In the Forbidden Sea, on an island that looked hollowed out, a brilliant formation light burst from a mine pit, shooting skyward in a dazzling display.