
1. I Could Never Replace My Sister
Aired: Jul 5, 2025In the next episode, Marie's life takes a dramatic turn as she's unexpectedly...


Mio delves into a cryptic remark in a letter from Marie's brother, while Marie and Kyros enjoy a romantic getaway to the capital.
Streaming in:
United States
Currently, you have the opportunity to watch "Betrothed to My Sister's Ex" by streaming it on the following platforms: Crunchyroll Premium. Additionally, viewers have the option to either rent or purchase "Betrothed to My Sister's Ex" on the following digital platforms: AppleTV, Amazon.