Online Game: God-tier Assassin, I Am the Shadow! Chapter 1576: "Thousand-fold difficulty? I don't feel anything!"

This was a square, cube-shaped space, and the white jade walls on all sides blocked any perception. Qin Feng could see that in this cubic space, all six walls—front, back, left, right, top, and bottom—had a large circular door, but they were currently in a closed state. "Opening any one of these doors will allow you to travel in that direction." "But corresponding monsters will appear. You need…