The Lazy Concubine's Daughter Is Fierce

Liang Qingxue, a concubine-born daughter, had endured the bullying of her scumbag father, stepmother, and two-faced older sister since childhood. All she wanted was to hold on until she could leave the Liang family and get married.

But the System in the book bound her to it, forcing her to become its Host.

Threatened with annihilation if she refused the System, she had no choice but to grow stronger, one step at a time.