My senior brother is too steady

My senior brother is too steady, My Brother Is Actually Too Stable, My Senior Is Really Extremely Firm, Wǒ Shīxiōng Shízài Tài Wěnjiànle, 我师兄实在太稳健了, 我師兄實在太穩健了 , Wo Shixiong Shizai Tai Wenjianle
After being reborn in ancient times before the Great God-Conferment War, Li Changshou became a small cultivator.
To survive in the cruel Primordial Times, Li Changshou tries hard not to accumulate any karma. 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 mystical abilities.
Li Changshou originally planned to remain hidden and safe in the mountain until his ascension to immortality. However, everything changed one year when his master brought home a junior sister…