Nenrei Seigentsuki Otome Game no Akuyaku Reijou desu ga, Katabutsu Kishi-sama ga Yuushuu Sugite R Event ga Issai Okinai

Synopsis

In an unexpected turn of events, Lobelia, the daughter of a marquis, discovers that she has been reincarnated as the villainess of an 18-rated otome game. Even more shocking, Lily, her beloved younger sister, is cast as the game's heroine. Unwilling to let her dear sister face the grim scenarios laid out in the game, Lobelia embarks on a mission to change her predestined fate, vowing not to bully her sister, as her game character would.

In her past life, Lobelia found herself drawn not to the prince - the game's main love interest - but to his loyal knight escort. Spotting an opportunity, she decides to woo the knight while supporting her sister in the background. Unfortunately, the knight appears to harbor no interest in Lobelia, and worse, he has a habit of entirely quashing any romance-related events. Can Lobelia successfully rewrite her destiny and find her own happily ever after?