The “Keep Your Hands Off Eizouken! 10th Anniversary Dai Eizouken Ten!” exhibition is running at the seventh floor of Kitasenju Marui in Tokyo from June 26 through July 12, 2026 (10:00–19:00 daily; last entry 18:30). General admission is ¥2,400.

The show marks a decade of serialization for Sumito Oowara‘s manga, and Oowara himself took part in the installation, fine-tuning exhibits down to the smallest details. In a rare behind-the-scenes opportunity, press were invited to observe Oowara adding handwritten notes and drawings to the displays during a late-night session after the venue had closed to the public.

Early Character Designs and Logo History

Visitors are greeted immediately by panels tracing the pre-serialization character designs of the trio — Asukusa Midori, Kanamori Sayaka, and Mizusaki Tsubame — from the earliest rough concepts through intermediate stages to the final pre-publication versions, revealing how dramatically the characters evolved. Life-size standees of all three are also on display, letting visitors gauge each character’s height in person.

Nearby panels chart the evolution of the series title logo, alongside artwork showing the finalised design of Hyakumeki and an alternative character who nearly became Hyakumeki instead. Early name drafts from the period when the story was still conceived as a “film club” rather than Eizouken are also exhibited.

A Ten-Metre Corridor of Drafts and Finished Pages

Beyond the entrance zone, a roughly ten-metre corridor lines both walls with name drafts and completed manuscript pages displayed side by side for each chapter. Some chapters show panel layouts carried over almost unchanged from draft to final; others were completely restructured. The sheer volume of material warrants a generous time allowance.

The corridor opens into a colour-illustration zone featuring artwork published in Monthly! Big Comic Spirits (Shogakukan), chapter title pages, and rarer pieces — including a collaboration illustration with Ibaraki Prefecture’s Miho Village (where Asukusa serves as the inaugural tourism ambassador), a collab piece drawn for a 2018 talk event with Yoneshiro Kyo (Ageku no Hate no Kanon) at Aoyama Book Center, and an illustration from the June 2020 issue of CanCam.

Production Documents and an In-Universe Timeline

The opposite wall of the illustration zone displays internal production materials never previously made public: workflow charts, character colour references, and assistants’ manuals for blur and greyscale techniques. Materials created by two of Oowara’s former assistants — Shifuto (Tengai no Vault) and Nanka Nan (Room 999) — are also on show.

A standout panel presents an in-universe timeline beginning in 1800, logging Eizouken’s activities alongside cumulative sales figures and social-media follower counts in chronological order. This material is currently exclusive to the exhibition.

A Real Mini-Excavator and a Faithful Club-Room Recreation

The photography-permitted final zone features a Komatsu electric micro-excavator “PC01E-1” as its centrepiece. Oowara explained he wanted something visually impactful, drawing inspiration from the cover of Chapter 30 (Volume 4, “Asukusa’s Clever Method”), in which Asukusa rides exactly this machine. Visitors can climb aboard and pose for photos wearing the provided hard hat.

Equally detailed is the recreation of the Eizouken club room, complete with the corrugated-iron sheet the three girls repaired together, Kanamori’s beloved bottled-milk cooler box, a desk hand-built by Asukusa (dimensions specified by Oowara himself) bearing pencil smudges from Asukusa’s drawing sessions and marks left by Kanamori’s laptop, and the sofa carried over from the Mizusaki household. A whiteboard beside the desk features Oowara’s hand-drawn reproduction of the outdoor-screening battle plan that Asukusa writes in Chapter 36 (Volume 5, “Prepare for the Screening”). The whiteboard is likely to be erased after the event closes, so visitors are encouraged to photograph it.

Final Zone and Merchandise

The last section — a no-photography zone — displays live-action adaptation materials and a production sample of the “General-Purpose Manned Flight Pod Kylie,” which appears in Chapter 1 and has been announced for a plastic-model release.

The merchandise corner offers acrylic stands, pin badges, clear files, a sento bag featuring the in-universe “Onkyokuyokujo” logo, and a “Spare Hat of Asukusa Midori,” among other items. Spending ¥3,000 or more earns a random holographic sticker (one of five designs); spending ¥10,000 or more earns a complete set of all four “Shibahama High School Student ID” cards. A ¥3,000 purchase also enters buyers into a lottery for an Oowara autograph, a complete ten-sticker set, or a single sticker.

Every merchandise POP sign in the corner is handwritten by Oowara and has been updated since opening day — reason enough for repeat visitors to look closely for new additions throughout the venue.

Event Details

• Exhibition: Keep Your Hands Off Eizouken! 10th Anniversary Dai Eizouken Ten!
• Dates: June 26 – July 12, 2026
• Hours: 10:00–19:00 (last entry 18:30)
• Venue: Kitasenju Marui, 7F, Tokyo
• Admission: ¥2,400 (general)