As expected, there were faint black lines running across the back of the leaf. If it weren't for Lu Xuan's careful attention, these hair-thin black lines would be extremely difficult to spot.,Unable to directly treat the problem, he could only use his inner qi with caution to carefully separate the black line from the underside of the leaf.,This small patch of spirit field in the courtyard was rented from a mid-stage Qi Refinement cultivator at the market, costing a hefty sum of spirit stones every month.。