Comiket 109 (Winter Comiket 2026)

Comiket 109 — Japan's biggest doujinshi (fan-made comic) convention — runs for three days, December 29-31, 2026, at Tokyo Big Sight in Tokyo's waterfront Ariake district, marking the first genuine three-day winter Comiket since C95 in December 2018. The Comiket Preparatory Committee announced the dates and the extended run in March 2026, citing record circle (doujin seller) application numbers at the previous winter event, C107, and continued strong demand at summer's C108.

Quick facts (as of July 2026)

• Dates: Tuesday, December 29 - Thursday, December 31, 2026 (3 days; move-in/setup on December 28)
• Venue: Tokyo Big Sight, Ariake, Koto City, Tokyo — East Halls 4-6 are closed this cycle for the venue's ongoing renovation, so the show runs across fewer halls than usual despite the extra day
• Circle (doujin seller) applications: expected to open around August 2026 (not yet open as of this writing)
• General visitor entry: paid wristband each day; exact pricing, daily hours and the hall map have not yet been published
• Organizer: Comic Market Preparatory Committee (コミックマーケット準備会)
• Official page: comiket.co.jp/info-a/C109/C109Schedule.html

Why three days, and why now

Winter Comiket has run two days for years — the last genuine three-day winter edition was C95 in December 2018. (C97, in December 2019, ran an exceptional four days split across two venues, Ariake and Aomi, after Tokyo Olympics-related construction closed off Tokyo Big Sight's East halls — a one-off emergency format, not a three-day show.) That was followed by the COVID-era hiatus and format changes. According to reporting from Dengeki Online and Eventbiz.net, the Preparatory Committee pointed to two pressures building since events resumed at full scale: circle applications for C107 (winter 2025) reached the highest level of the post-pandemic era, and C108 (summer 2026) kept that momentum going. At the same time, Tokyo Big Sight's East Halls 4-6 are out of service for renovation work through this cycle, shrinking the venue's usable floor space. Adding a third day is the committee's way of fitting a still-growing event into a temporarily smaller building.

What's still unconfirmed

As of July 2026, several practical details haven't been published yet: the exact hall assignment (which depends on how many circles apply), the wristband price for general visitors, and each day's opening and closing times. The circle application window is planned for around August 2026, but hasn't opened. If you're planning a trip around C109, treat the December dates and the three-day, Tokyo Big Sight venue as confirmed, and check the official schedule page again closer to the event for the rest.

Getting there

Tokyo Big Sight sits in Tokyo's waterfront Ariake district. The closest stations are Kokusai-Tenjijo on the Rinkai Line and Tokyo Big Sight Station on the Yurikamome, both an easy walk from the venue's exhibition halls.

Not to be confused with Jump Festa

C109 shares the December otaku-event calendar with Jump Festa 2027 (Dec 19-20, 2026 at Makuhari Messe in Chiba) — a separate, free Shueisha-run anime/manga expo about a week and a half earlier and in a different venue. Fans doing a December Tokyo-area otaku trip sometimes plan around both.

FAQ

Is Comiket 109 really three days? Yes — December 29 to 31, 2026, the first genuine three-day winter Comiket since C95 in December 2018. (C97, in December 2019, ran an exceptional four days across two venues, Ariake and Aomi, after Tokyo Olympics construction closed Tokyo Big Sight's East halls — that wasn't a three-day show.)

Do I need to apply in advance to attend? Only circle (doujin seller) participants need to apply, in a window expected to open around August 2026. General visitors don't apply in advance, but do need a paid entry wristband on the day.

Is this the same event as the Tokyo Big Sight show in August 2026? No — that's Comiket 108, the summer edition. C109 is the separate winter edition, extended to three days instead of the usual one or two.

Where can I check for updates on price, hours and the hall map? The Comic Market Preparatory Committee's official site, comiket.co.jp, and its X/Twitter account (@comiketofficial) are the primary sources — none of those details were published as of July 2026.