K-jangnyeoga Yugamure Binguihamyeon
The Eldest Daughter Takes Over·K-장녀가 육아물에 빙의하면
The protagonist has long submitted to the desires of her younger brother, Meldor, who is destined to become Duke Elton. After regaining memories of a past life where she similarly sacrificed for a sibling, she reaches a turning point. Determined to no longer endure this pattern, she resolves to reclaim all she has given up to Meldor. She also intends to teach him a lesson about his entitled behavior.