"How many experience points do you need?" Fang Ning asked.
"At least a billion," Sir System said in an upset tone.
"That's very expensive and it'll all be gone if the incarnation dies. No wonder you're unwilling to use it," Fang Ning responded with great understanding.
"It's good that you know it," Sir System shouted in reply.
As the conversation came to an end, Fang Ning struck upon an idea just as he was about to go back to play again. "That's not right, this incarnation of yours can carry out Ultra Spatio-temporal Communication. Everything I've said to it is passed over through a different world to you, so why are both of you saying that you can only know what happens to it after you retract it?" Fang Ning asked in surprise.
"Uh…" Sir System was speechless and responded after a moment, "You don't need to know this, it has nothing to do with your mission."
