
My Stepmom's Daughter is My Ex
継母の連れ子が元カノだった
Exes become unlikely stepsiblings in a hilarious game of one-upmanship. Sparks fly as they engage in a series of ridiculous battles. If you love witty rom-coms, this is unmissable.
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. (Source: J-Novel Club)
Editorial mood guide by WatchMoodly Editorial Team · Base catalog metadata via AniList.
6.6/10 avg
Studio: project No.9
Mood Rationale & Viewing Guide: Should You Watch My Stepmom's Daughter is My Ex?
Within our mood classification system, My Stepmom's Daughter is My Ex aligns strongest with a romantic / happy / funny viewing mood (love stories that will make your heart flutter). Key tonal signals include high school romance, exes as siblings, forced proximity, step siblings, awkward relationships, comedy of errors, making it a strong pick when you want a story driven by those themes without spoilers.
Watch If…
- •You want a comedy, romance anime series released in 2022 from project No.9.
- •You enjoy themes centered on high school romance, exes as siblings, forced proximity, step siblings.
- •You want a compact 12-episode run you can finish in a weekend (~24 min per episode).
Skip If…
- •You prefer high-intensity, gritty psychological thrillers over comedy and romance storytelling.
- •You are looking for an ongoing, multi-season franchise rather than a completed release.
Official Trailer

Official Streaming Platforms
Frequently Asked Questions About My Stepmom's Daughter is My Ex
Where can I watch My Stepmom's Daughter is My Ex (2022) legally online?
My Stepmom's Daughter is My Ex is available through official platforms including Crunchyroll, Prime Video, Crunchyroll Premium (Via Prime) Amazon Channel, Sony LIV. Use the streaming links on this page to open the licensed release directly.
What mood and genres does My Stepmom's Daughter is My Ex fit best?
My Stepmom's Daughter is My Ex is classified under Comedy, Romance and best matches a romantic or happy or funny mood, featuring elements of high school romance, exes as siblings, forced proximity, step siblings, awkward relationships.
How many episodes does My Stepmom's Daughter is My Ex have?
My Stepmom's Daughter is My Ex (2022) is currently marked as completed with 12 episodes, averaging 24 minutes per episode.
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