Is The Shiunji Family Children Worth Reading? Review & Where to Read

Quick Answer
If the premise doesn't put you off, yes — it's a sharply drawn ensemble rom-com from a creator who knows how to juggle a big cast, and the central question of what these siblings actually mean to each other gives it more weight than a typical harem comedy.
Quick Verdict
“Built around a premise some readers won't forgive on principle, but the ensemble writing is sharp enough to make the gamble pay off for anyone who can get past it.”
Best for: Readers who enjoyed the character work in Rent-a-Girlfriend and want a bigger ensemble built around a messier emotional premise.
Not for: Readers who want a conventional, low-drama family comedy or who find stories built around sibling-adjacent romance too uncomfortable to enjoy, no matter how it's framed.
- Type
- Manga
- Genres
- Romance, Comedy
- Status
- Ongoing
- This review
- Minor Spoilers
- Author
- Reiji Miyajima
- Publisher
- Hakusensha (Young Animal)
- Platform
- Yen Press
| Quick facts | |
|---|---|
| Format | Manga (seinen), 8 volumes |
| Run | 2022–present · ongoing |
| Community score | AniList 6.2 · MangaUpdates 5.9 |
| Content | Central premise involves non-blood-related siblings reconsidering romantic feelings for each other |
| Where to read | Yen Press — official |
Overview
Arata Shiunji has spent his whole life as the oldest brother in a loud, crowded household: five sisters, one younger brother, all raised together under one roof. Then his adoptive father sits the family down and tells them something that changes everything about how they see each other — none of the seven siblings actually share blood. They were brought together as a family, not born into one. The Shiunji Family Children starts from that reveal and spends its run watching what happens when a houseful of people who've always called each other siblings have to figure out what they actually are to one another now that the one fact holding that label in place is gone.
Arata's own instinct is to keep things exactly as they were. He likes his family the way it is, and he's not interested in reinterpreting a decade of sibling relationships as something else just because the biology changed. That resistance matters, because it's what keeps the book from becoming a straightforward harem dressed up in a shock premise — instead, it's a story about a kid actively fighting the direction everyone around him, including the story itself, wants to pull his family in.
What it does well
Reiji Miyajima's biggest strength, which he already showed off in Rent-a-Girlfriend, is juggling a big cast without losing track of anyone, and he scales that skill up well here. Seven siblings is a lot of people to keep distinct, and the book does it fast — Banri's steady older-sister competence, Ouka's hidden fragility under an outgoing surface, Minami's blunt athleticism, Kotono's youngest-sibling neediness — these aren't just character-sheet traits, they come through in how each sibling actually talks and acts around the others.
The smartest structural choice is spending real time on the siblings as an ordinary, functioning family before the reveal complicates everything. By the time the 'we're not blood-related' bombshell lands, you've already seen this group as a family, which is exactly what makes Arata's resistance to redefining them land with weight instead of reading as stubbornness for its own sake.
The comedy is genuinely funny, with timing and running gags that come from characters you've actually gotten to know rather than generic rom-com shorthand, and the art does real work distinguishing seven characters who are all around the same age from each other — you can tell who's who at a glance, which matters a lot in a cast this size.
Where it falls short
The premise is the premise, and it's not for everyone. The manga plays the sibling-to-romance pivot earnestly rather than for shock value, but it doesn't spend much time trying to win over readers who find the setup uncomfortable on principle — you either accept the central idea or the book just isn't going to work for you, and that's worth knowing going in rather than discovering three volumes deep.
Seven siblings is also, inevitably, too many to develop evenly. A couple of the romantic threads get noticeably more page time and care than others, and it's easy to tell which pairings the story is actually invested in versus which ones are there to round out the ensemble. The slice-of-life chapters between major beats can also run long, especially in the volumes that are mostly setting up later arcs rather than paying anything off.
Verdict
The Shiunji Family Children is a sharply written ensemble comedy that asks a lot of its premise and mostly earns the ask — it's smarter and more emotionally considered than a shock-value sibling-romance pitch would suggest, but it's still going to be a hard no for readers who can't get past that pitch in the first place.
Strengths & Weaknesses
Strengths
- Seven distinct siblings get real, differentiated personalities fast — the kind of ensemble-juggling the creator already showed he could do in Rent-a-Girlfriend, scaled up to a much bigger cast without anyone feeling like filler.
- Arata's reluctance to let the 'not blood-related' reveal change anything is the smartest choice in the book; his resistance to the premise keeps the story from just becoming a straightforward harem and gives it an actual emotional question to chew on.
- The comedy timing is sharp and the family's established in-jokes and dynamics land because the earlier, more ordinary sibling relationships get set up before the reveal complicates them.
- The art is clean, expressive, and does a lot of work distinguishing seven visually similar-aged characters from each other at a glance.
Weaknesses
- The core premise is a hard line for some readers no matter how it's handled, and the manga doesn't spend much energy trying to talk anyone into being comfortable with it — you either accept the setup or the whole book doesn't work for you.
- With seven siblings plus Arata, some get noticeably less development than others, and a couple of the romantic threads feel thinner than the ones the story clearly favors.
- The slice-of-life stretches between the bigger emotional beats can run long, and the pacing slows considerably in volumes that are mostly setup for later arcs.
Similar Titles
The same creator's earlier series — similar sharp, slightly uncomfortable rom-com instincts, just with a smaller cast and a different kind of messy premise.
The Quintessential Quintuplets
Another ensemble rom-com built around a large cast of similar-aged siblings/near-siblings and a single lead who has to sort out his feelings toward several of them.
Where to Read Officially
| Platform | Format | Pricing | Region notes | Link |
|---|---|---|---|---|
| Yen Press | Print & digital volumes | Paid | Region availability varies | Open |
Prefer to watch? There's an anime
The Shiunji Family Children: see where to stream it legally, plus episode guides and trailers, on Watchanimee.
Frequently Asked Questions
Is The Shiunji Family Children finished?
No, it's still ongoing — serialization started in 2022 and had reached 10 volumes as of mid-2026, with new chapters still being released.
Is there an anime, and where does it leave off relative to the manga?
Yes, a 12-episode anime aired in spring 2025 and streams on Crunchyroll. It covers the earlier arcs of the manga, so there's plenty of story left for readers who finish the show and want to keep going.
How uncomfortable is the central premise, honestly?
It's built directly into the setup — Arata and his six adoptive siblings are not blood-related, and some of them start reconsidering their feelings for each other once they learn that. It's played earnestly rather than exploitatively, but if a 'maybe-siblings' romance premise is a dealbreaker for you regardless of how it's framed, this isn't going to change your mind.
Where should I start if I just want the family-comedy parts without committing to a ship?
The early volumes spend real time on ordinary sibling dynamics before the romantic angle takes over, so volume 1 works fine as a entry point even if you're mostly curious about the ensemble comedy.

