The Wuyou Formula consists of ten levels, known as "Energy Absorption."
As the name implies, it is much like the "Energy Absorption Technique" from television dramas in his past life, capable of absorbing the internal energy of others for one’s own use. When Wuyouzi taught the Wuyou Formula to Jia Lingyun, it only had ten levels, but the Quick Mastery Method written by Li Zixuan included an eleventh.
Therefore, there were some things he needed to clarify with Wuyouzi.
Chapter 612