C613 Four Burdens

"You just got here. It's okay if you don't know." The man in the suit said: "After all, we only discovered them recently"

"Have you fought before?"

Yun Ruoyan immediately asked curiously, "Are they strong?"

"Very strong."

The man said with a solemn expression, "If they are not Grade S, then do not become enemies with them. Furthermore, even if they are Grade S, you must be careful