My Stepmom's Daughter is My Ex
2022 • project No.9
- Format
- TV
- Aired
- 2022
- Episodes
- 12
- Status
- Finished
- Studio
- project No.9 · Happinet Phantom Studios · KADOKAWA · Asmik Ace
- Genres
- Comedy · Romance
Ah, high school. Is there any better place to start fresh after a horrible middle school relationship? Nope! Not unless your ex ends up at the same school as you and is now your stepsibling. What was supposed to be a sanctuary of peace where I could avoid ever seeing her again has become a living nightmare! Everywhere I look, I see her—in my house, in my school, in my class. There's no escape! She even claims that she’s the older sibling. Like hell she is! But I won't lose to her. After all, I'm the older brother in this new family situation. That’s right, we’re family now. No matter how much we may have thought we loved each other before, we saw one another’s true colors and realized we weren’t meant for each other. That’s why even though we may keep up a buddy-buddy sibling act for the sake of our parents, things will never go back to the way they used to be.
Synopsis from AniList
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Where it came from
My Stepmom's Daughter is My Ex originated as a light novel series written by Kyosuke Kamishiro and illustrated by Takayaki, first serialized online in 2017 before being picked up by Kadokawa Shoten. The story centers on two former middle school sweethearts who unexpectedly become step-siblings after their respective parents remarry, forcing them to navigate a tense domestic life while struggling to hide their past relationship. The premise plays heavily into the tropes of the romantic comedy genre, focusing on the awkward emotional residue left behind after a breakup.
The 2022 television anime adaptation was produced by studio project No.9 and directed by Shinsuke Yanagi. The production team aimed to emphasize the comedic friction of the protagonists' shared history while maintaining the polished, vibrant aesthetic typical of contemporary high school anime. Upon its release, the series received attention for its distinctive central premise, which deviates from standard 'will-they-won't-they' narratives by positioning the characters as already having moved past the initial honeymoon phase of a relationship.
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