C906

"Soul Suspending Stairway?" Fang Rui and Yao Kexin widened their eyes at the same time, "What's that thing?"

The old man slowly searched through his memories for a while before he finally opened his mouth.

Of course, in reality, it is only a three-dimensional staircase, it is only using light, angle, and other factors to create illusions in the brain. In fact