C580 Prison Ship

"An S class command?" Qin Chuan muttered in confusion.

"The S rank command is that all warriors who come to this spaceship must pass the test. The highest treasure is set to S rank. If you can pass the test, you will be able to obtain the treasures on this spaceship!"

"In the high level civilizations of the starfields, the treasures or manuals will usually be divided into E, D, C, B, A, S, SS