C45 Advance to Qi Refining

Ye Fan's thoughts delved deep into his mind as he initiated communication with the system.

"System, I want to advance to the Qi Refining stage."

"Ding! Advancing to the Qi Refining stage requires the consumption of eight energy units. Do you wish to confirm?"

The sweet electronic tone echoed in Ye Fan's mind.

Without a moment's hesitation, Ye Fan confirmed his choice