[About Cosplay Participation]
Cosplay is prohibited at Comitia!
Official website.
You can also check other events here: Event Calendar
Additionally, the dates listed below for Comitia events in various regions are those officially announced as of now.
COMITIA is a large-scale doujinshi event held four times a year in Tokyo (typically in February, May, August, and November). It is strictly focused on original (self-created) works—meaning no fan works or secondary creations based on existing anime or manga. The organizing committee describes it as an "Independent Comic Magazine Exhibition and Sale." The event is often nicknamed "TIA" by fans.
Among the four annual events, the May edition is the largest, designated as an "expanded event" with more exhibitor spaces. The November event follows in scale, while the February edition tends to have fewer participants. The August COMITIA often sees a drop in attendance as it takes place right after the massive Comic Market (Comiket). Even so, each COMITIA attracts tens of thousands of attendees, making it one of the largest original doujinshi events in Japan. In 2025, events are scheduled for February, June, September, and November. For more information, visit the official website.
Kansai COMITIA is one of the largest regional COMITIA events in Japan, with around 5,000 attendees per event. It is second in scale only to the Tokyo COMITIA. The event is usually held twice a year, alternating between INTEX Osaka and Kyoto Pulse Plaza. For more details, check the official website.

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This is the biggest and the most popular travel company in Japan!! You can reserve hotel at reasonable price!! There are English, Thai, Korean and Chinese version for Rakuten!! You can switch it from language. If you're using Smartphone, change website to PC version and switch the language to your language.
To stay in Japan, Japanese site is always the cheapest.