In the grayish-black soil, some low-grade spirit plants were planted. Under the silent nourishment of the mist all night, the spirit plants radiated vitality, lazily stretching their tender green leaves.,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.,Lu Xuan was just a low-level spiritual planter, from an ordinary background with limited knowledge. He wasn't sure what this black thread was all about.。