A woman in her forties (unmarried, history buff) is reincarnated after the classic truck accident.
She had reincarnated as a young girl with memories of her past life, but instead of a fantasy isekai world, she finds herself in “Pre-War Japan”.
At first, she thought it would be an easy life since she was reborn into a noble zaibatsu family, but as she recalled her memories, she realized this world might actually be a recreation of an otome game she knew well.
On top of that, the body she reincarnated into was that of the classic ‘Villainess’.
And even if she weren’t a ‘Villainess’, if history continues on its course, Japan will lose the war, and as a noble zaibatsu family, her household will be doomed to destruction.
Alternate Titles:
悪役令嬢の十五年戦争 ～転生先は戦前の日本？！ このままじゃあ破滅フラグを回避しても駄目じゃない！！～
歴女が戦前日本が舞台の乙女ゲーム世界に転生！
A History Buff Reincarnates into an Otome Game World Set in Pre-War Japan!
