You Are a Loser in Cultivation and Rely Entirely on Your Junior Sisters to Fight and Drop Treasures.

Good-for-nothing Luo Tiansheng, who has been cultivating for more than 20 years before reaching the fourth level of Qi, accidentally obtained a magical [system] and relied on his junior sister Mu Wanqing to fight against the enemy. [System] will actually drop exercises, upgrade skills, and increase strength. From then on, Luo Tiansheng was a sinister person during the day, and a happy Shura night at night.