Betrothed to My Sister's Ex

Marie thinks that she is being used as a substitute fiancée for her lost sister Anastasia; due to her parents breaking her self-worth. In truth, she was the one the proposal was meant for; the sender had mixed up their names.

2025 HD 25min Japan Japanese

Rena Motomura Ryohei Kimura Minami Tanaka Daiki Hamano Yoko Hikasa Sayaka Ohara Tetsuya Kakihara Tatsuyuki Kobayashi Yuuka Aisaka

Animation Comedy

anime based on light novel romance josei

S1E1 - I Could Never Replace My Sister 2025-07-05

Marie is always dressed in tatters and is treated like a servant in her own home. Then she meets Count Kyros.

S1E2 - Marie, I Want to Marry You 2025-07-12

Kyros hates aristocratic society and its ties of obligation. But why? And what changed when he met Marie?

S1E3 - A Life I Saw in a Dream, and a Dream-like Life 2025-07-19

Marie begins her new life as Kyros fiancée and finds herself bewildered by the differences from her old life.

S1E4 - I've Found the Things I Like 2025-07-26

Kyros wants to provide Marie with every comfort, but Mio cautions him. Then a package from the baron arrives.

S1E5 - The Prince and the Pitch-Black Warrior 2025-08-02

Luiphon takes Marie to a sword fighting contest. The ferocity of it scares her. Then the dark warrior fights.

S1E6 - Am I Enough As I Am? 2025-08-09

Liu Liu, Kyros mother, discovers surprising things about Marie. Mio investigates the baron on Kyros orders.

S1E7 - You're So Close, I Think You May Make Me Dizzy 2025-08-16

Mio investigates a comment in a letter from Maries brother. Marie and Kyros go to the capital for a date.

S1E8 - A Gift More Lovely Than Jewels 2025-08-23

Kyros and Marie meet Luiphon at a jewelers at his request. Thoughts of Anastasia haunt Maries happiness.

S1E9 - In Pursuit of Anastasia's Spirit 2025-08-30

Kyros demands the truth of Anastasias accident, but he and Marie are not prepared for the answers they find.

S1E10 - Please Call Off the Betrothal 2025-09-06

Worried, Kyros arranges to meet with Norman. But as Marie hears him describe his apprentice, her fears grow.

S1E11 - The Empty Princess Lives 2025-09-13

Maries attacker talks about the past. Why did little Maries life change so much? Why was she left in rags?

S1E12 - It's Time to Settle This 2025-09-20

Marie is determined to settle things. But even with everyones help, how will she confront her parents?

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