My Sister Is the Main Character

Reincarnated into a novel, she tries to protect her sister from being imprisoned by taking her place. However, the obsessive duke fixates on her instead, flirting and even threatening to confine her. Strangely, she finds herself drawn to him despite her protests.

My Older Sister Is the Main Character; 언니가 주인공인데요; Eonniga Juingongindeyo; My Elder Sister Is the Protagonist; My Big Sister Is the Main Character; My Sister Is the Main Character; My Sister Is the Protagonist Though; My Older Sister Is the Protagonist; A minha irmã é a protagonista; Moja starsza siostra jest główną bohaterką; Моя сестра – главная героиня; Pemeran Utamanya adalah Kakakku!; 主人公はお姉様だったのに！; Chị gái tôi là nhân vật chính