I Am the Older Sister of the Possessed Female Lead is an engaging mix of drama, fantasy, and historical romance. The story revolves around Annette, who has always been mistreated by her younger sister—until one day, everything changes. Suddenly, her sister speaks politely, tries to help her, and even insists on finding a perfect match for her. The drastic transformation raises many questions, making readers eager to understand the truth behind her behavior.
What makes this manhwa so compelling is the blend of humor and mystery. Annette’s confusion and skepticism create amusing moments, while the sudden involvement of high-ranking nobles adds tension. The story offers a refreshing take on the isekai and historical romance genres by focusing on family dynamics as much as romance. Readers are drawn to the witty dialogue, unexpected plot twists, and growing emotional depth between the sisters.
Plot of I Am the Older Sister of the Possessed Female Lead

Annette has spent years dealing with her younger sister’s cruelty, only for her to suddenly change overnight. The girl who once tormented her now treats her with kindness and insists on helping her navigate high society. Annette is left bewildered by this sudden shift, wondering what could have caused such a drastic personality change.
To make matters more confusing, her sister starts meddling in her love life. She eagerly lists potential suitors, ranging from brooding noblemen to delicate scholars, as if Annette’s future depends on it. But while her sister plays matchmaker, Annette is more focused on unraveling the truth. Why did her once-merciless sister suddenly become so devoted? Could there be a deeper reason behind her actions?
Chapter 105 is expected to bring more shocking revelations as Annette continues to search for answers. Meanwhile, mysterious figures with hidden agendas draw closer, further complicating her already chaotic life. Will she finally uncover the truth behind her sister’s transformation? And how will she handle the growing number of admirers vying for her attention? Readers are eager to see what happens next.
I Am the Older Sister of the Possessed Female Lead Chapter 105 Release Date and Time

I Am the Older Sister of the Possessed Female Lead Chapter 105 is scheduled to release on Wednesday, March 12, 2025. Here are the release times across different time zones:
- Japan Standard Time (JST) Thursday, March 13, 2025, at 12:00 AM
- India Standard Time (IST) Wednesday, March 12, 2025, at 8:30 PM
- Greenwich Mean Time (GMT) Wednesday, March 12, 2025, at 3:00 PM
- Philippines Standard Time (PHT) Wednesday, March 12, 2025, at 11:00 PM
- Korean Standard Time (KST) Thursday, March 13, 2025, at 12:00 AM
- Eastern Time (EST) Wednesday, March 12, 2025, at 10:00 AM
- Central Time (CST) Wednesday, March 12, 2025, at 9:00 AM
- Mountain Time (MST) Wednesday, March 12, 2025, at 8:00 AM
- Pacific Time (PST) Wednesday, March 12, 2025, at 7:00 AM
- Australian Capital Territory (ACST) Thursday, March 13, 2025, at 2:00 AM
Where to Read I Am the Older Sister of the Possessed Female Lead Chapter 105
Fans can read I Am the Older Sister of the Possessed Female Lead Chapter 105 on official manhwa platforms such as KakaoPage or other licensed sources. Supporting the original creators ensures the continuation of the series.