16 results
Formerly, the Fallen Daughter of the Duke
Moto, Ochikobore Koushaku Reijou desu. The Comic· 元、落ちこぼれ公爵令嬢です。THE COMIC
manga

Claire Martino once had everything: a loving family, a crown prince fiancé, and a hopeful future using her family's inherited magic. Then, in an instant, she lost it all — and the culprit was her own beloved half-sister. As the daughter of the now-disgraced duke and scorned as a villainess, Claire leaves everything she knows and sets out on a journey to find her true self. But wait, isn't that the plot of the otome game NEW START ♡ ETERNAL LOVE on its hardest route...? (Source: TOKYOPOP)

Formerly, the Fallen Daughter of the Duke
Moto, Ochikobore Koushaku Reijou desu.· 元、落ちこぼれ公爵令嬢です。
novel

Claire Martino has a fairy-tale life anyone would envy, with a noble upbringing, a crown prince for a fiancé, and a promising future ahead of her as Noston’s most powerful mage. That is, until everything crashes down around her when all of the family magical talent goes to her half sister, Charlotte, instead. With her engagement broken and reputation tarnished, Claire flees the only life she’s ever known and sets off on an adventure to find the freedom she’s craved all along. It’s anything but easy, but fortunately for a girl with dignity, talent, and a whole lot of bravery, nothing is impossible...even turning out to be a video game character! Much to her surprise, Claire finds herself periodically teleported to modern-day Tokyo where Claire Martino is no more than a side character in the classic dating sim game Upstart: Eternal Love. Yet even that won’t stop Claire from saving the day so she can unlock the good ending of her own route. (Source: J-Novel Club)

I’ll Use This Do-over to Become the Ideal Lady’s Maid!
Yarinaoseru Mitai nanode, Kondo koso Akogare no Jijo wo Mezashimasu!· やり直せるみたいなので、今度こそ憧れの侍女を目指します!
novel

The daughter of a viscount has returned to the past, and she intends to dedicate her second life to waiting on young ladies as the ideal lady's maid! The day after her engagement is called off, Emma returns to her life at the age of 15, having served her country thus far using her power to travel to the future. And this time around, she won't be sacrificing herself for the sake of the nation! She's determined to fulfill her childhood dream of becoming a lady's maid when a mysterious duke from the neighboring country appears before her. "I don't waste my time on nonsense." But his kindness belies his cold words and Emma finds herself drawn to him. Yet he keeps a secret that could change everything... (Source: Cross Infinite World)

An Incompetent Woman Wants to Be a Villainess ~The Daughter Who Married as a Substitute for Her Stepsister Didn't Notice the Duke's Doting~
Munou Saijo wa Akujo ni Naritai: Gimai no Migawari de Totsuida Reijou, Koushaku-sama no Dekiai ni Kizukanai· 無能才女は悪女になりたい ~義妹の身代わりで嫁いだ令嬢、公爵様の溺愛に気づかない~
manga

Avril is a young woman of exceptional ability who was mistreated and labeled "incompetent" by her family. Avril marries into the family of an "old, lustful duke" in place of her half-sister, but the duke, Dylan, is actually a beautiful young man who is the complete opposite of what he is rumored to be. He wants to marry a "villainess," and a contractual divorce after three years is perfect for Avril's future freedom. The people around her are bewildered by the mysterious "brilliant woman" who plays the role of a "villainess" with gusto, but they are gradually drawn to her...

The Wicked Sacrifice's White Marriage
Ikenie Akujo no Shiroi Kekkon: Mezametara 8-nengo, Katsute wa Goei Datta Koushaku-sama no Dekiai ni Naremasen!· 生贄悪女の白い結婚~目覚めたら8年後、かつては護衛だった公爵様の溺愛に慣れません!~
manga

Ninette, a baroness, is known as a wicked woman because of her constitution which attracts the opposite sex. Her stepmother and stepbrother took over over the family mansion, and forced her out to live in a hut, with only a young boy, Till, to act as her bodyguard. One day, Ninette is framed by her stepbrother and offered up as a living sacrifice. But it turns out to be an opportunity for her to gain great power. When she returns to the town, eight years have somehow passed...... and she decides she will live her life alone. But Till, who was once a boy, has grown up, and he still harbors feelings for Ninette, even after she suddenly disappeared. Now he offers her a contract marriage. (Source: Comic Brise, translated)

An Incompetent Woman Wants to Be a Villainess ~The Daughter Who Married as a Substitute for Her Stepsister Didn't Notice the Duke's Doting~
Munou Saijo wa Akujo ni Naritai: Gimai no Migawari de Totsuida Reijou, Koushaku-sama no Dekiai ni Kizukanai· 無能才女は悪女になりたい ~義妹の身代わりで嫁いだ令嬢、公爵様の溺愛に気づかない~
novel

Avril is a young woman of exceptional ability who was mistreated and labeled "incompetent" by her family. Avril marries into the family of an "old, lustful duke" in place of her half-sister, but the duke, Dylan, is actually a beautiful young man who is the complete opposite of what he is rumored to be. He wants to marry a "villainess," and a contractual divorce after three years is perfect for Avril's future freedom. The people around her are bewildered by the mysterious "brilliant woman" who plays the role of a "villainess" with gusto, but they are gradually drawn to her...

I May Only Look Like a Saint, but After My Death-Loop, the Cold Duke Is Too Sweet!
Kao dake Seijo nanoni, Shi ni Modottara Reikokudatta Koushaku-sama no Honne ga Ama Sugimasu!· 顔だけ聖女なのに、死に戻ったら冷酷だった公爵様の本音が甘すぎます!
manga

Born into the prestigious Count Charlier family, known for producing saints, Estelle had very little magical power and was mockingly called nothing more than a “Saint in Looks Only.” To make matters worse, her stepsister steals the title of Saint from her, and Estelle is sent off to a remote region. On the journey there, she is murdered by someone, ending her “first life.” However, when Estelle opens her eyes, she finds herself back in the world a year earlier— and for some reason, her cold and distant fiancé, the Duke, is now whispering words of love to her!? Swept up by the overwhelmingly sweet true feelings of a duke who just can’t get enough of her, this is a heart-pounding romantic comedy you won’t be able to put down

My Fiancé Forgot About Me, so I Entered a Fake Engagement with the Neighboring Prince (But Apparently, I’m His True Love?!)
Kon'yakusha ni Wasurerareta Watashi Ringoku no Koutaishi Denka to Gisou Kon'yaku Suru Koto ni Narimashita (※Tadashi, Denka no Honmei wa Watashi Mitai desu!?)· 婚約者に忘れられた私、隣国の皇太子殿下と偽装婚約することになりました(※ただし、殿下の本命は私みたいです!?)
manga

Leafe, the eldest daughter of a duke, is the reincarnation of the dark magician Laurie. In her previous life, she was feared as an evil woman of unparalleled wickedness and lived a solitary life. In this life, she has avoided loneliness and has successfully lived a smooth life surrounded by her family and fiancé. However, her younger sister Aria stole her fiancé and kicked her out of the house, returning her to a life of solitude. In order to attend Aria's engagement party and fight back, Leafe asks Oliver, the crown prince of a neighboring country, to be her partner. She thought this would be a one-off, but for some reason Oliver has asked her to marry him!? (Source: Kodansha, translated)

Being Reborn After 100 Years, I Was Asked to Marry a Knight From Previous Life, Who Doesn't Seem to Recognize Me as the Princess
100-nen Go ni Tensei Shita Watashi, Zense no Joukishi ni Kyuukonsaremashita· 100年後に転生した私、前世の従騎士に求婚されました
manga

If you reincarnate, your status will be reversed?! A first love romance that is bound together beyond time! Sheila's previous life was that of Queen Alexia, who died 100 years ago. Despite her previous life's knowledge of magic, Sheila is unable to use it, but with that knowledge and the purpose of finding the reincarnation of her first love, Collin, she sets out to move. [Original Web Novel](https://ncode.syosetu.com/n8381gq/) **Original Web Publication:** [ComicWalker](https://comic-walker.com/contents/detail/KDCW_FL00203091010000_68/), NicoVideo

Escaping from the Prince’s Broken Engagement
Ouji-sama no Konyaku Haki kara Toubou shimasu "Koko wa Otome Game no Sekai!" to Iiharu Seijo-sama to Happy End no Tame ni Te wo Kumimashita· 王子様の婚約破棄から逃亡します 「ここは乙女ゲームの世界!」と言い張る聖女様とハッピーエンドのために手を組みました
manga

In the Kingdom of Ernesia, it is customary for members of the royal family to marry a "Saint," a woman blessed with mysterious powers. Kate was born as a Saint in this kingdom and is engaged to the second prince, Gilbert. However, for some reason, he has always treated her coldly. One day, a new "Saint" is summoned from another world. Fearing that Gilbert would break off their engagement, Kate attempts to flee the castle. But the one who offers to help her escape is none other than the newly summoned Saint from another world…!? Original Webtoon https://ebookjapan.yahoo.co.jp/stories/141104/

The Doomed Villainess Who Accidentally Won the Prince's Devotion
Hametsu wo Hikaeta Akuyaku Reijou ga Muri shite Heroine wo Enjita Kekka: Taida na Yosei ga Akogare nanoni, Dai-2 Ouji no Dekiai Route ni Konwakuchuu· 破滅を控えた悪役令嬢が無理してヒロインを演じた結果~怠惰な余生が憧れなのに、第二王子の溺愛ルートに困惑中~
manga

In her previous life, she was an overworked office lady trapped in a black company. Now, she’s been reincarnated as Seraphina, the villainess of an otome game! Being the bad guy is way too much work—and after a lifetime of exhausting labor, all she wants in this life is to relax and be lazy forever! Determined to avoid her doom and enjoy endless naps, she sets out to live a slow, carefree life… but for some reason, everyone around her starts to grow fond of her instead!? Before she knows it, she’s fallen right into the overprotective love route! https://www.cmoa.jp/title/348787/

The Only Magician in the World Will Be Happy as a Court Alchemist ※Her True Power Is a Secret!
Sekai de Yuiitsu no Mahousukai wa, Kyuutei Renkinjutsushi to shite Shiawase ni Narimasu: ※Hontou no Chikara wa Himitsu desu!· 世界で唯一の魔法使いは、宮廷錬金術師として幸せになります ※本当の力は秘密です!
manga

Only I can use magic in a world where magic has disappeared― A secret power that no one can tell, fascinates even His Highness the Crown Prince. **Original Web Novel:** [Kakuyomu](https://kakuyomu.jp/works/16817139556421117591), [Syosetu](https://ncode.syosetu.com/n3243hj/) **Original Web Publication:** [ComicWalker](https://comic-walker.com/contents/detail/KDCW_FL00203497010000_68/), NicoVideo