C55 Mechanical Puppet.

In a secluded corner of the Black Tortoise Mountain Range, Qin Yutong gently waved her hand, summoning a flicker of spiritual light.

With a series of hand seals, she sent faint ripples through the air. Suddenly, a massive rock before her began to glow with a dim light, akin to that of a candle's flame.

Within the stone wall, a small door emerged, just wide enough for a person to pass through