I'm Invincible In This World After Signing-In At Cold Palace For 80 Years

Chapter 197

This check-in came suddenly.

Lin Jiufeng is looking forward to it.

After all, it is the gate of the mountain and sea world. There has been a hidden world for several times. No one has found these hidden worlds, so this check-in must be very rare.

Lin Jiufeng had already figured out the sign in rule.

The more dangerous the place is, the richer the check-in reward is.

The rarer the place, the more precious the sign in reward.

And some places where you can check in repeatedly,