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Betrothed to My Sister's Ex Season 1 poster

Betrothed to My Sister's Ex Season 1 Episode release dates & where to watch

Premiered

Saturday, July 5, 2025

Ended: Saturday, September 20, 2025

When does Betrothed to My Sister's Ex Season 1 come out?

Betrothed to My Sister's Ex Season 1 premiered Saturday, July 5, 2025 on MBS and ended Saturday, September 20, 2025. The season has 12 episodes.

Last updated

Betrothed to My Sister's Ex Season 1 release schedule

Betrothed to My Sister's Ex Season 1 episode release dates
Episode Release date

1. I Could Never Replace My Sister

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

Saturday · 1 year ago

2. Marie, I Want to Marry You

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

Saturday · 1 year ago

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

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

Saturday · 1 year ago

4. I've Found the Things I Like

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

Saturday · 1 year ago

5. The Prince and the Pitch-Black Warrior

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

Saturday · 1 year ago

6. Am I Enough As I Am?

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

Saturday · 1 year ago

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

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

Saturday · 1 year ago

8. A Gift More Lovely Than Jewels

Kyros and Marie meet Luiphon at a jeweler's at his request. Thoughts of Anastasia haunt Marie's happiness.

Saturday · 1 year ago

9. In Pursuit of Anastasia's Spirit

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

Saturday · 1 year ago

10. Please Call Off the Betrothal

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

Saturday · 1 year ago

11. The Empty Princess Lives

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

Saturday · 1 year ago

12. It's Time to Settle This Finale

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

Saturday · 1 year ago

Betrothed to My Sister's Ex Season 1 FAQ

When does Betrothed to My Sister's Ex Season 1 come out?

Betrothed to My Sister's Ex Season 1 premiered Saturday, July 5, 2025 on MBS.

How many episodes are in Betrothed to My Sister's Ex Season 1?

Betrothed to My Sister's Ex Season 1 has 12 episodes.

Are new episodes of Betrothed to My Sister's Ex Season 1 released weekly?

New episodes are released weekly.

When is the Betrothed to My Sister's Ex Season 1 finale?

The Betrothed to My Sister's Ex Season 1 finale (Episode 12) aired Saturday, September 20, 2025.

How do I get notified when new Betrothed to My Sister's Ex Season 1 episodes are released?

Download the Streambay app and follow Betrothed to My Sister's Ex. You'll get a push notification the moment each new episode is out.

Never miss Betrothed to My Sister's Ex Season 1.

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