I Regressed, So I'm Entering a Fake Engagement with My Favorite Grand DukeNew回帰したので推し大公と偽装婚約します

A real-life Cinderella uses her past life's "fan activities" as a weapon to change her fate —!? After her mother's death, Ella, a count's daughter, was oppressed by her stepmother and stepsisters, living like a servant. As soon as she came of age, she was forced to marry a gambling-addicted viscount. The only support in her desperate days was her "fan activities" for the nation's hero — Grand Duke Wellington. Ella was so obsessed with the Grand Duke that she memorized every piece of information about him. But one day, she was sold off by her husband-in-name-only to pay off his debts. At the end of her despair, Ella lost consciousness — and when she woke up, she was in the past, at age 18. Vowing never to repeat the same tragedy, Ella proposes a fake engagement to the Grand Duke Wellington — the man she admires — in order to protect her mother's inheritance. What future will Ella's bold choice lead her to —?