I Can't Miss You, My Heart Beats Only for You

A heroine from a poor village, a blood-sucking native family (mother pretending to be ill + a violent gambler father + Voldemort's younger brother), a tragedy of corruption at the bottom of her previous life, a secret crush on the male protagonist, a rebirth at the age of 16 to change her life, picking up garbage to earn the first pot of gold, cutting off relatives to stop losses, and seizing the opportunity of the times to counterattack