Watashi ga Seijo? Iie, Akuyaku Reijou desu!: Nanode, Zenin Hametsu wa Soshi Sasete Itadakimasu

Iris has awakened as the villainess in the world of her favorite otome game—but this is no ordinary game. Every route ends in a bittersweet "Happy-Bad" Ending. If the heroine pairs with one of her problematic love interests, the rest of the world is doomed. Yet if the heroine fails, the villainess is the one who pays with her life. Trapped between catastrophe and death, Iris must use the time she has to alter the story before those routes can unfold. Her plan is simple in purpose but difficult in practice: ensure the heroine never follows the paths that lead to ruin. Whether that means curing a fatal disease or re-parenting a possessive twin brother, Iris will do whatever it takes to stop the Happy-Bad Endings from coming true. With the world's fate and her own survival on the line, she refuses to accept the doom the game has written for her.