Zutaboro Reijou wa Ane no Moto Konyakusha ni Dekiai sareru


Betrothed to My Sister's Ex

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Alternative Titles

Synonyms: Loved by Her Sister's Former Fiancée
Japanese: ずたぼろ令嬢は姉の元婚約者に溺愛される
English: Betrothed to My Sister's Ex
More titles

Information

Type: TV
Episodes: 12
Status: Finished Airing
Aired: Jul 5, 2025 to Sep 20, 2025
Premiered: Summer 2025
Broadcast: Saturdays at 01:53 (JST)
Licensors: None found, add some
Studios: LandQ studios
Genres: DramaDrama, RomanceRomance
Demographic: JoseiJosei
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older

Statistics

Score: 7.361 (scored by 2121121,211 users)
1 indicates a weighted score.
Ranked: #26412
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #3380
Members: 52,572
Favorites: 217

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7.36
Ranked #2641Popularity #3380Members 52,572
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Episodes: /12

Synopsis

The Shaderan family has fallen on hard times, and the avaricious and callous baron and baroness will stop at nothing to regain status. They favor their beautiful daughter Anastasia, hoping to marry her into wealth, while they treat the second daughter, Marie, no better than a servant. Years of abuse have convinced Marie that she is truly undeserving of love and attention.

On Marie's birthday—used as a ploy to showcase Anastasia—Marie meets Count Kyros Granado, who is immediately charmed by Marie and her knowledge of his culture. Believing Anastasia to be the one he fell for, Kyros proposes via letter. But Anastasia tragically dies on her way to marry him. Forced to take Anastasia's place, Marie becomes Kyros' fiancée, just as he originally intended. Although Marie terribly lacks confidence, Kyros gently helps her find her worth, awakening her to her own beauty and the true meaning of being loved.

[Written by MAL Rewrite]

Characters & Voice Actors

Granado, Liu Liu

Supporting
Ohara, Sayaka
Japanese

Wolfgang

Supporting
Asou, Tomohisa
Japanese

Johan

Supporting
Taketora
Japanese

Tania

Supporting
Sadaoka, Sayuri
Japanese

Giovanni

Supporting
Aoki, Takashi
Japanese

Staff

Kamei, Hiroshi
Assistant Producer
Kitagawa, Takayuki
Director
Kameyama, Toshiki
Sound Director
Ihara, Kenta
Script, Series Composition


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Opening Theme

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"Gesshoku (月蝕)" by krage
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Ending Theme

"Marie (マリー)" by Myuk

Episode Videos




Reviews

Oct 12, 2025
This is a decent shoujo, or rather josei. The art and animation is decent for the genre. I felt this is a variant or the Cinderella story. Much of the show is about how the woman overcomes the harsh upbringing and is liberated by kindness and love. By the end the story wraps up nicely with no need for a further sequel.
Is the story unique? No. It was predictable sometimes. I enjoyed it anyway for what it was.

I am not in the demography and so cant give it a higher score but I can see how the target audience might.
My Rating: 6/10 ...
Oct 20, 2025
Mixed Feelings
'Betrothed to My Sister's Ex' is the latest so-called Cinderella story from what we've had in recent years, namely, My Happy Marriage, as well as 'The Too-Perfect Saint: Tossed Aside by My Fiancé and Sold to Another Kingdom.' How does this fare?


§ Overview

Marie Sharedan is the maltreated second daughter of Duke Shaderan, whilst her older sister, Anastacia, is well-beloved.

Anastacia is supposed to be engaged with Count Kyros Granado. However, Anastacia met an untimely fate, so Marie has to be her substitute. Will Marie finally find the happiness that she was deprived of?


...
Sep 20, 2025
TLDR: A visually exquisite experience weight down by shallow characters and an unoriginal story.

The show shines a light on interesting societal and interpersonal dynamics, but refuses to engage the topics in any detail to the point that they feel like set dressing. The male MC, Kyros, is a lord who employs the most capable people regardless of ethnicity/ nationality. Some of the positive sides of this approach, like diversity in cuisine, clothing, care products and procedures, are showcased but none of the conflicts that would arise from different upbringings and culture values are seen at all. Kyros himself is an ethnic minority and seems to ...

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41 Entries · 106 Restacks

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