Awaken the Trading House System and Loot, Fight, and Extract in the Cultivation World

In his previous life, he was a top-ranked Demon King Protector on Horn Island. After pulling an all-nighter grinding jobs, he dropped dead and woke up as the eldest legitimate son of the Xu family, a clan of cultivators. He was attacked the moment he arrived. On the brink of death, he activated the Trading House System. Anything could be listed for trade: cultivation techniques, pills, magical artifacts, even toilet paper. Nothing was off the table. The trouble was, he had spent all his million in starting funds just to stay alive. His uncle held power, his cousin hid a knife behind his back, and his birth father was missing. The day of the sacred grounds' awakening was tomorrow, and danger was already lurking in the shadows. I, Xu Ping, don't believe in fighting to the death and never retreating. I follow just one rule: search the battlefield, get the job done, then get out. (This book is fairly laid-back in the early chapters, with a bit of a farming-novel feel.)