C53 Is the Earth Rank Martial Skill That Difficult?

Ji Fu used the free time to observe for three hours before he had a new understanding of his current cultivation speed.

Then, he muttered to himself, "At my current stage, the Energy Accepting Spell will automatically increase by 1% every two hours, and it is under the premise that I have a high-grade Nutrient Stick. If I take the initiative to cultivate it, the speed of its increase can double