The Yu Brother's Case Book - Volume 2 Chapter 9

After being reborn in the ancient times before the Great God-Conferment War, Li Changshou becomes a minor cultivator. He is neither destined for great things nor great woe. His only dream is to live a long life as a cultivator. In order to survive in the cruel Primordial Times, Li Changshou tries hard not to accumulate any karma—killing inevitably leads to feuds.

Thus, he always plans thoroughly before doing anything and never allows himself to walk into dangerous situations. He hides his trump cards well, trains himself in escape techniques, refines poisonous pills, and masters his mystical abilities. Before making any moves, he takes on an extremely steady demeanor. Yet, every move of his ends up earth-shattering. Once he is done, he will disappear without a trace.

Li Changshou originally plans to remain hidden and safe in the mountain. There, he is supposed to cultivate until he ascends to immortality. However, everything changed one year when his master seems to think that their lives are too peaceful… He takes in a junior sister…

Having transmigrated into a little farmer girl, her father passed and her mother turned crazed. Facing a frail household, Qian Yixiu remained calm, her rise relied on strength, and also on the luck she had when being a “ghost”.Together with her younger brother, she strived to build wealth with one hand and protect her beauty with the other...

“When everyone worked hard just to obtain pills, artifacts, wealth, or power. Well, hehe. All I need to do is buy them through the Invincible Exchange System!” Our protagonist said with a smirk on his face.

- Description from Novelupdates