When a K-Eldest Daughter Gets Reincarnated Into a Parenting Story

Reborn into a novel she once read, a woman finds herself as the overlooked eldest daughter meant to be a powerful heir, but sidelined for her younger brother.

Tired of seeking family approval, she sets out to reclaim everything: power, allies, and even what once belonged to the heroine.

But why does that heroine keep showing interest in her?