Rebirth: The Tea House of Destiny

Reborn in an old alley in Xi'an, Gu Yan becomes a sickly tea house owner. Outsiders see him as a useless invalid who can barely stand without coughing, relying entirely on his shop assistant to keep the business running. But no one knows he carries the feng shui legacy of the Changbai lineage, with the ability to open his spiritual eye to discern qi, identify objects, break yin-yang curses, and resolve earth vein death traps. A blood-soaked jade cicada unearthed from Mang Mountain kills on contact; an iron nail curse array left from the Republic era brings death at every step; a hidden chamber beneath a Qing dynasty mansion holds a lost geomantic artifact; deep within the mines of the Zhongnan Mountains lies the dragon marrow of the earth vein. The Japanese Kyūkū sect secretly infiltrates, coveting China's earth vein treasures; a century-old nemesis crosses reincarnation to meet him again. With a cup of tea, he settles a karmic debt; with half a cinnabar brush, he guards a region's peace. From a street-level oddity to a guardian of the earth veins, he follows the Qinling dragon vein westward to the ancestor of all mountains, unraveling a karmic cycle spanning three lifetimes. — Description from novelcodex.org