Osananananajimi Volume 3, created by Nene Yukimori, will be released in Japan on August 19, 2026. Shueisha is publishing the print and digital editions simultaneously under its Young Jump Comics imprint.
The new volume takes Yuichi, Sumi, Etchan, and Zuu away from their usual school routine for a summer stay at Zuu's villa. Its cover places Sumi and Etchan at the center of the illustration.
Quick Summary
- Japanese title: おさななななじみ
- Romanized title: Osananananajimi
- Official English/global title: not yet announced
- Format: manga
- Latest volume: Volume 3
- Japanese release date: August 19, 2026
- Print edition: August 19, 2026
- Digital edition: August 19, 2026
- Creator: Nene Yukimori
- Japanese creator name: 雪森寧々
- Publisher: Shueisha
- Imprint: Young Jump Comics
- Serialization magazine: Weekly Young Jump
- Serialization frequency: biweekly
- Serialization launch: July 3, 2025
- Opening issue: Weekly Young Jump's combined 2025 issue No. 31
- Genres: pure romantic comedy and childhood-friend romance
- Volume 3 price: 792 yen including tax
- Book format: B6
- Page count: 178 pages
- ISBN: 978-4-08-894309-1
- Main characters: Yuichi and Sumi
- Volume 3 characters: Yuichi, Sumi, Etchan, and Zuu
- Primary Volume 3 setting: Zuu's villa
- Story period: summer vacation
- Cover characters: Sumi and Etchan
- Volume 1: released December 18, 2025
- Volume 2: released March 18, 2026
- Volume 1 and 2 status: additional printings confirmed
- Official English edition: not yet announced
- Official Indonesian edition: not yet announced
- Anime adaptation: not yet announced
Official Announcement and Volume 3 Cover
Print and Digital Editions Arrive Together
Shueisha will release Osananananajimi Volume 3 on August 19, 2026. The physical B6 edition contains 178 pages and is priced at 792 yen including tax.
The digital edition is scheduled for the same day. BOOK WALKER has opened digital preorders, while Shueisha and S-MANGA list ISBN 978-4-08-894309-1 for the printed book.
No official English, Indonesian, or wider international physical edition has been announced. Volume 3 currently remains a Japanese publication.
Four Childhood Friends Stay at Zuu's Villa
The official synopsis brings together Yuichi, Sumi, Etchan, and Zuu, the four childhood friends collectively known as “nananana,” for a summer vacation at Zuu's villa.
They will spend the trip under the same roof. The setting removes them from their school routine and gives the group more uninterrupted time to talk and take part in activities together.
The synopsis does not reveal the exact incidents that will happen at the villa. Its suggestion that something is bound to occur instead places the four characters' shared time at the center of Volume 3.
Any major change in their relationships or a specific romantic confession therefore remains unconfirmed before the book's release.
The Cover Features Sumi and Etchan
The Volume 3 cover presents Sumi and Etchan in a close and relaxed composition. Its yellow palette and their expressions match the summer setting introduced in the official synopsis.
A small photograph appears between them, reinforcing the series' focus on memories and the history shared by the childhood-friend group. Yuichi and Zuu are not the main figures on the cover, although both remain part of the volume's story.
Nene Yukimori also referred to the summer clothing when revealing the artwork. The complete context of the illustrated moment, however, cannot be confirmed from the cover alone.
Yuichi and Sumi Remain the Story's Foundation
Osananananajimi follows Yuichi and Sumi, childhood friends who once spent nearly all of their time together. Their relationship gradually became distant as they grew older until an unexpected opportunity led them to speak again.
The manga develops their connection through brief conversations, awkward pauses, and memories that have never fully disappeared. Rather than immediately moving toward a confession, it follows the process of learning how to approach someone who feels both familiar and distant.
Etchan and Zuu expand that relationship into a group of four longtime friends. Volume 3's summer trip allows every member of “nananana” to interact beyond the limits of their normal school schedule.
Volumes 1 and 2 Receive Additional Printings
The official series account and Nene Yukimori confirmed that both earlier volumes have received additional printings ahead of Volume 3.
Volume 1 was released on December 18, 2025, and introduced the renewed contact between Yuichi and Sumi. Volume 2 followed on March 18, 2026, continuing their relationship while bringing the other childhood friends further into the story.
No sales figures or print quantities were disclosed. The additional runs nevertheless ensure that more copies of the first two books are available as the summer story reaches stores.
Why This Matters
1) A new environment changes the group's interactions
The villa and summer vacation remove the characters from their classroom routine, giving them more time together in a private setting.
2) The entire “nananana” group moves to the foreground
The earlier story rebuilt Yuichi and Sumi's connection. Volume 3 expands its focus by making Etchan and Zuu central participants in the trip.
3) The cover gives Sumi and Etchan equal visual weight
Choosing both girls for the front illustration suggests that the volume's emotional dynamics extend beyond only its primary childhood-friend pairing.
4) Earlier books remain available through reprints
The additional printings allow new readers to begin with Volumes 1 and 2 before continuing into the summer-vacation storyline.
Manga Information
The important details currently known are:
- Osananananajimi is a romantic-comedy manga created by Nene Yukimori
- its official Japanese title is おさななななじみ
- serialization began on July 3, 2025
- the manga runs through Shueisha's Weekly Young Jump
- the story follows childhood friends Yuichi and Sumi as they begin speaking again
- Etchan and Zuu are members of their longtime friend group
- Volume 3 will be released on August 19, 2026
- print and digital editions arrive on the same date
- the physical book contains 178 pages in B6 format
- its Japanese price is 792 yen including tax
- the Volume 3 ISBN is 978-4-08-894309-1
- Volume 3 sends the four childhood friends to Zuu's villa
- Sumi and Etchan appear on the Volume 3 cover
- Volumes 1 and 2 have received additional printings
- official English and Indonesian editions have not been announced
- an anime adaptation has not been announced
- series details are available through the official Osananananajimi page on Weekly Young Jump
- Volume 3 information is available through the official Shueisha product page
- the first chapter is available through the official Tonari no Young Jump page
Closing
Osananananajimi Volume 3 brings Yuichi, Sumi, Etchan, and Zuu together at a villa during summer vacation. Living under the same roof creates a new setting for the four longtime friends to confront their distance, memories, and unspoken feelings.
The volume will be released in Japan on August 19, 2026, in print and digital formats. International editions, distribution outside Japan, and a possible anime adaptation remain unannounced.
- Official X — Volume 3 Release Date, Sumi and Etchan Cover, and Earlier Volume Reprints
- Nene Yukimori X — Volume 3 Cover Announcement and Volume 1–2 Reprint Confirmation
- Shueisha — Volume 3 Release Date, Price, Page Count, ISBN, and Official Synopsis
- S-MANGA — Physical and Digital Volume 3 Publication Information
- Weekly Young Jump — Official Series Synopsis, Serialization Magazine, and Creator Information
- Tonari no Young Jump — Official First Chapter, Series Premise, and Serialization Start
- Shueisha — Official Series List and Previous Volume Release Dates
