“What about the second level?” Tolly asked with great curiosity.

“The second-level cultivators must be able to lead their energy inside to temper their skins so as to boost the rate of absorption of vital energy from the outside world. with the levels up, flesh, sinews or muscles, bones, fluids, marrow, internal organs, and the brain or the senses will be tempered and strengthened accordingly.”

“What do you mean by fluids that’ll be tempered?” Tolly asked again, raising his eyebrows.

“Well, tempering fluids is a must-learn technique for the sixth-rank cultivators. Fluids usually mean white, red, yellow, and black ones inside your body, such as blood, phlegm, yellow bile, and black bile. But for cultivators, above all, they have to be able to transform their white fluids into vital energy, also known as ki energy.”

“That’s amazing! How about the level nine?” asked Tolly.

“For the ninth-rank cultivators, they are able to store their vital energy into some place inside their brains c