We're J-Just Childhood Friends

We're J-Just Childhood Friends
First tankōbon volume cover, featuring Yuuichi Momose and Sumi Fujino
おさななななじみ
(Osananananajimi)
GenreRomantic comedy
Manga
Written byNene Yukimori
Published byShueisha
ImprintYoung Jump Comics
MagazineWeekly Young Jump
Original runJuly 3, 2025 – present
Volumes2

We're J-Just Childhood Friends (Japanese: おさななななじみ, Hepburn: Osananananajimi; Childhood Friend) is a Japanese manga series written and illustrated by Nene Yukimori. It has been serialized in Shueisha's seinen manga magazine Weekly Young Jump since July 2025, with its chapters collected in two tankōbon volumes.

Premise

High schoolers Yuuichi Momose and Sumi Fujino have been friends since they were little. Although they are in the same class, they have grown increasingly distant over time, with their interactions becoming infrequent. They would later interact again when Sumi visits the Momose family home for the first time in a long time.

Characters

Yuuichi Momose (百瀬 優一, Momose Yūichi)
Voiced by: Tomohiro Ōno (vomic)[1]
A high school boy who used to be close to Sumi before they grew apart in middle school.
Sumi Fujino (藤野 澄, Fujino Sumi)
Voiced by: Ai Kayano (vomic)[1]
A high school girl who currently lives alone in her apartment and often visits the Momose household.

Publication

Written and illustrated by Nene Yukimori, who previously created the manga series Kubo Won't Let Me Be Invisible from 2019 to 2023, We're J-Just Childhood Friends began serialization in Shueisha's Weekly Young Jump on July 3, 2025.[2] The series' first tankōbon volume was released on December 18, 2025.[1] To promote the series, three voice comics covering the first three chapters, featuring Tomohiro Ōno and Ai Kayano, respectively, voice Yuuichi and Sumi, were posted on the official Young Jump YouTube channel.[1]

The manga's chapters are simultaneously published in English on Shueisha's Manga Plus app.[3]

No. Release date ISBN
1December 18, 2025[4]978-4-08-893826-4
  1. "We're J-Just Childhood Friends" (おさななじみ, Osananajimi)
  2. "Lunch Box" (お弁当, Obentō)
  3. "A Get-Well Visit" (おみまい, Omimai)
  4. "Spoiled Kid" (あまえんぼ, Amaenbo)
  1. "Cha-cha-childhood Friends" (おさなななじみ, Osanananajimi)
  2. "Sleepover" (おとまり, Otomari)
  3. "Scaredy Cat" (こわがり, Kowagari)
2March 18, 2026[5]978-4-08-894091-5
3August 19, 2026[6]978-4-08-894309-1

Reception

The series has been nominated for the twelfth Next Manga Award in 2026 in the print category.[7]

See also

References

  1. 1 2 3 4 雪森寧々が描く幼なじみピュアラブコメ1巻、茅野愛衣&大野智敬出演のボイスコミックも [The first volume of the childhood friend pure love comedy drawn by Nene Yukimori, and a voice comic starring Ai Kayano and Tomohiro Ohno]. Comic Natalie. Natasha Inc. December 18, 2025. Retrieved December 27, 2025.
  2. ↑ "「久保さんは僕を許さない」の雪森寧々が描く、幼なじみのピュアラブコメがYJで" [A pure love comedy about childhood friends drawn by Yukimori Nene, author of "Kubo-san Won't Forgive Me", is now available on YJ]. Comic Natalie. Natasha. July 3, 2025. Retrieved December 27, 2025.
  3. ↑ "We're J-Just Childhood Friends". Manga Plus. Shueisha. Retrieved June 27, 2026.
  4. ↑ おさななななじみ 1 (in Japanese). Shueisha. Retrieved June 27, 2026.
  5. ↑ おさななななじみ 2 (in Japanese). Shueisha. Retrieved June 27, 2026.
  6. ↑ おさななななじみ 3 (in Japanese). Shueisha. Retrieved June 27, 2026.
  7. ↑ 【次にくるマンガ大賞2026】、ノミネート作品発表　6/26よりユーザー投票開始. Billboard Japan (in Japanese). June 26, 2026. Retrieved June 26, 2026.
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