Osananananajimi
We're J-Just Childhood Friends
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Osananananajimi
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Alternative Titles

Japanese: おさななななじみ
English: We're J-Just Childhood Friends
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Information

Type: Manga
Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Jul 3, 2025 to ?
Genres: Comedy Comedy, Romance Romance
Themes: Love Status Quo Love Status Quo, School School
Demographic: Seinen Seinen
Serialization: Young Jump
Authors: Yukimori, Nene (Story & Art)

Statistics

Score: 7.451 (scored by 671671 users)
1 indicates a weighted score.
Ranked: #35362
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #6800
Members: 3,466
Favorites: 12

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Osananananajimi
7.45
Ranked #3536Popularity #6800Members 3,466
MangaYoung JumpYukimori, Nene (Story & Art)
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Synopsis

Yuuichi Momose and Sumi Fujino are childhood friends who have been together since they were little. Now, they're high school classmates, but since they've reached puberty, they don't feel as close as they used to. They know each other well, but there's a sense of formality there. This is the delicate relationship between them, until one day, Sumi suddenly comes to Yuuichi's house...?

(Source: MU)

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Background

Osananananajimi has been published digitally as an English simulpub as We're J-Just Childhood Friends through MANGA Plus.

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More characters
Characters

Fujino, Sumi
Fujino, Sumi
Main
Momose, Yuuichi
Momose, Yuuichi
Main

Reviews

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1 Recommended
1 Mixed Feelings
0 Not Recommended
All reviews (2)
Jul 16, 2025
Huang-Teizan
Recommended
Preliminary (2/? eps)
7.9/10


Fluff... So much fluff...
This manga is the type of story where you're unconsciously smiling the entire time due to the lack of drama and the abundance of wholesome and cute moments between the main characters. And hey, I'm all for it because this is a childhood friend story that I can get behind -- A childhood friend story where the childhood friend is finally not doomed to lose.

This manga is very simple in design, where the author inserts some flashback memory moments and contrasts them with the present scenes. So far, almost every interaction between the main characters gets tied in with how they ...
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Dec 1, 2025
infinitegreen0
Mixed Feelings
Preliminary (13/? eps)
After the successful series "Kubo Won't Let Me Be Invisible", Nene Yukimori returns with a manga that is identical in art style and mostly identical in tone and plot. Prepare yourself for lots of fluff - some adorable, some overdone - and a litany of sparkling, one-panel shots of a girl holding a hand to her mouth and looking shyly downward while she says something totally ordinary like "I'm glad you liked it" or "That makes me happy."

The one thing that really separates this series from Kubo is that the author puts more emphasis on flashbacks and exploring (though not too deeply) the background of ...
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More discussions
Recent Forum Discussion

Poll: Osananananajimi Chapter 18 Discussion
d2rkest - Feb 4		 1 repliesby AnderS16 »»
2 hours ago
Poll: Osananananajimi Chapter 17 Discussion
nhiudv - Jan 21		 7 repliesby Skuvan »»
Jan 29, 1:39 AM
Poll: Osananananajimi Chapter 16 Discussion
AnderS16 - Dec 24, 2025		 3 repliesby yuuichisumi »»
Dec 30, 2025 2:19 AM
Poll: Osananananajimi Chapter 15 Discussion
d2rkest - Dec 17, 2025		 1 repliesby yuuichisumi »»
Dec 18, 2025 8:49 AM
Poll: Osananananajimi Chapter 14 Discussion
nhiudv - Dec 10, 2025		 3 repliesby yuuichisumi »»
Dec 11, 2025 7:32 PM

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