C974 Upgrade the System Function!

"Fortunately, I've got just enough resources to upgrade the system functions," Su Lang noted, scanning the available system upgrades and nodding in approval.

Upgrading the Doppelganger Sending to level 31 and the One-click Empowerment to level 10 would each cost 100,000 Lower Immortal Sources, but the rest only required 10,000.

"System, let's bump up the One-Click Cultivation