Seven Seas Launches Betrothed to My Sister's Ex Audiobook for Siren Imprint

(May 6, 2026) — Seven Seas Entertainment is pleased to announce, through its Siren imprint for audiobooks, the launch of the audiobook for Betrothed to My Sister's Ex by Tobirano and Mai Murasaki, with narration by Jennifer Sun Bell. A woman who's lived her life in the shadow of her sister must suddenly take her place after a tragic accident—but her life is about to get way more complicated. Manga also from Seven Seas—and don't miss the anime!

Marie has always been an afterthought. Her parents treat her like a servant, and her flawless older sister, Anastasia, is the family's shining star. Even at Marie's own birthday party, all eyes are on Anastasia—so much so that no one notices when Marie sneaks away.

But in the quiet of the evening, she has a chance encounter with a captivating man with striking green eyes: Count Kyros. Their brief meeting feels like a dream... until reality comes crashing back. Soon after, a marriage proposal arrives from the count--for Anastasia, of course.

Except... something doesn't add up. The gown that arrives with the proposal? It's clearly made for Marie. Could there be a mistake? Or is this the start of an unexpected love story?

Betrothed to My Sister's Ex (Audiobook) Vol. 1 will be released for the first time in the English language on June 11, 2026. Pre-orders available now at sevenseasaudiobooks.com.

About Seven Seas Entertainment
Established in 2004, Seven Seas Entertainment is an award-winning publisher that specializes in bringing the best of Japanese manga and light novels to English-language audiences alongside the hottest danmei, webtoons, and other books from around the globe, as well as producing audiobooks, original comics, and youth literature. All of Seven Seas' print book imprints are distributed throughout the world by Penguin Random House Publisher Services. For more information, visit sevenseasentertainment.com