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Betrothed to My Sister's Ex

1 season · 2025 · Ended

★★★★★4.0

AnimationComedyDrama

Marie, the second daughter of a poor baron’s household, is treated like a servant by her parents. Even at Marie’s birthday party, her beautiful elder sister, Anastasia, is the star. Outside, Marie bumps into Count Kyuros Granado, who falls for her at first sight. Yet, due to a misunderstanding, the Count proposes to Anastasia. After a tragic accident, Marie must marry the count instead!

Episodes

All seasons

I Could Never Replace My Sister

S01 · E01 I Could Never Replace My SisterJuly 5, 2025

Marie, I Want to Marry You

S01 · E02 Marie, I Want to Marry YouJuly 12, 2025

A Life I Saw in a Dream, and a Dream-like Life

S01 · E03 A Life I Saw in a Dream, and a Dream-like LifeJuly 19, 2025

I've Found the Things I Like

S01 · E04 I've Found the Things I LikeJuly 26, 2025

The Prince and the Pitch-Black Warrior

S01 · E05 The Prince and the Pitch-Black WarriorAugust 2, 2025

Am I Enough As I Am?

S01 · E06 Am I Enough As I Am?August 9, 2025

You're So Close, I Think You May Make Me Dizzy

S01 · E07 You're So Close, I Think You May Make Me DizzyAugust 16, 2025

A Gift More Lovely Than Jewels

S01 · E08 A Gift More Lovely Than JewelsAugust 23, 2025

In Pursuit of Anastasia's Spirit

S01 · E09 In Pursuit of Anastasia's SpiritAugust 30, 2025

Please Call Off the Betrothal

S01 · E10 Please Call Off the BetrothalSeptember 6, 2025

The Empty Princess Lives

S01 · E11 The Empty Princess LivesSeptember 13, 2025

It's Time to Settle This

S01 · E12 It's Time to Settle ThisSeptember 20, 2025

Cast

Rena Motomura

Rena MotomuraMarie (voice)

Daiki Hamano

Daiki HamanoKyros (voice)

Minami Tanaka

Minami TanakaAnastasia (voice)

Ryohei Kimura

Ryohei KimuraLouisphon (voice)

Yoko Hikasa

Yoko HikasaMio (voice)

Sayaka Ohara

Sayaka OharaRyu Ryu (voice)

Tetsuya Kakihara

Tetsuya KakiharaToppo (voice)

Tatsuyuki Kobayashi

Tatsuyuki KobayashiThomas (voice)

Yuuka Aisaka

Yuuka AisakaTunica (voice)