Comic Market 108 Cosplay Guide: Changing Rooms, Photography Rules, and Cosplay Areas

Anime-style cosplayer and photographer at Comic Market 108

Comic Market 108 takes place at Tokyo Big Sight on August 15 and 16, 2026. If you plan to cosplay, photograph cosplayers, or visit the cosplay areas, there are several rules worth knowing before you arrive.

The basics are straightforward: arrive and leave in regular clothes, change only in the official changing rooms, register for cosplay after entering, ask before photographing an identifiable person, and confirm separately before posting an identifiable photo or video online.

This guide focuses on cosplay participation and photography at C108. Admission procedures, packing, and detailed summer heat precautions are covered in separate guides.

C108 Cosplay Rules in 30 Seconds

  • Arrive at and leave Tokyo Big Sight in regular clothes, not cosplay.
  • Change only in the official cosplay changing rooms. Do not change or do makeup in toilets.
  • Cosplay registration costs ¥500 per day and is separate from C108 admission.
  • Registration to change into cosplay closes at 15:30.
  • Ask permission before taking an identifiable photo or video of someone.
  • Permission to take a photo does not automatically mean permission to post it online.
  • Follow staff instructions if a location becomes crowded or unsafe.
  • Cosplay Areas are designated gathering places, but cosplay and photography are not limited to those areas when the rules can be followed safely.

How to Cosplay at C108

For a first-time visitor, the process is easiest to understand in five steps.

1. Arrive in regular clothes

Comic Market prohibits arriving at or leaving the venue in cosplay.

This applies even if your hotel is close to Tokyo Big Sight. The official rules also say not to change inside a car before entering the event.

Bring your costume with you and change after you have entered C108.

2. Enter with the admission required for your ticket type

Cosplayers need normal C108 admission just like other attendees.

The ¥500 cosplay registration fee does not replace your ticket or wristband. Admission procedures, ticket types, exchanges, and identity checks are covered in the dedicated ticket guide.

Comic Market 108 Tickets and Entry Guide for Foreign Visitors

3. Register for cosplay at the changing room

For ordinary general admission, use the changing rooms in the Conference Tower:

  • Women: Conference Tower, 1F
  • Men: Conference Tower, 6F

Cosplay registration costs ¥500 per day.

Register at the changing-room entrance by 15:30 if you want to change into cosplay.

After registering, you receive a Cosplay Registration leaflet. The color changes by event day, and the leaflet also serves as your pass for re-entering the changing room. Keep it with you.

Keep your C108 admission wristband with you during the event as well, including while you are in costume.

4. Change in the official changing room

Changing or doing makeup in toilets is prohibited.

Use only the space you need, keep your belongings with you, and leave promptly after you finish changing. Comic Market asks participants to help reduce changing-room congestion.

The official guidance also encourages shortening your time inside where possible, for example by completing basic makeup before arriving.

Simple tables are available near the changing rooms for makeup touch-ups and organizing baggage after changing. They are not additional changing rooms, and belongings cannot be left unattended there.

5. Change back before leaving

You must change back into regular clothes before leaving Comic Market.

The Conference Tower changing rooms are scheduled to operate:

  • August 15, Day 1: 10:30-17:30
  • August 16, Day 2 and final day: 10:30-17:00

Do not wait until the last minute. The changing rooms can become crowded near closing, and on the final day teardown begins at 17:00, with some preparations starting around 16:00.

C108 Changing Rooms: Early Entry, Rules, and Baggage Storage

If You Already Have a Cosplay Changing Room Early Entry Ticket

The Cosplay Changing Room Early Entry ticket was sold by lottery and is already sold out. This section is only for people who already hold one.

Morning changing for these ticket holders takes place at the TFT Building West Wing 2F.

The C108 schedule lists:

  • Slot A: 8:00-9:30
  • Slot B: 9:30-11:00
  • Location: TFT Building West Wing 2F

After changing, participants are guided to the Gardens Cosplay Area. Movement from the Gardens to other halls begins after the event opens, with guidance expected from around 11:00.

If you are entering with ordinary Early Entry, AM Entry, or PM Entry instead, use the Conference Tower changing rooms for changing into cosplay.

When changing back before going home, both the TFT and Conference Tower changing rooms may be used.

Comic Market 108 Tickets and Entry Guide for Foreign Visitors

Changing-Room Rules

The changing room is for changing, not for photography, meals, or waiting for friends.

C108 prohibits:

  • Photos or videos inside, including selfies
  • Using a phone camera as a mirror
  • Leaving baggage unattended
  • Eating or resting inside
  • Waiting for friends inside or around the changing room
  • Using coloring sprays, color mousse, paint, or similar items that could soil the venue
  • Using electrical outlets

If you are unsure about a costume or cosplay item, ask Comic Market staff near the changing room.

Paid Baggage Storage for Cosplayers

C108 also provides paid baggage storage, or a cloak service, near the cosplay facilities.

Official C108 information lists:

  • Conference Tower, 7F
  • TFT Building West Wing, 2F
  • Hours: 8:30-16:30
  • Final day: until 16:00
  • Standard item: ¥500
  • Large item over 120 cm: ¥800

Space is limited, so do not build your entire plan around being able to store a bag there.

This service is useful if your costume creates extra baggage, but valuables should still be kept securely with you.

Costume Rules to Check Before C108

Comic Market allows a wide range of cosplay, but costumes must comply with the event rules and Japanese law.

The main restrictions concern excessive exposure, safety, damage to the venue, and behavior that could cause someone to be mistaken for a real authority.

Exposure and underwear

Costumes that could amount to indecent exposure are prohibited.

The official rules prohibit:

  • Wearing no underwear
  • Underwear that is directly visible or visible through transparent material
  • Excessive skin exposure

Swimwear requires appropriate underwear or support garments underneath.

Comic Market also recommends stockings or tights for costumes that could expose underwear when bending over or that leave much of the legs exposed.

If your costume is close to the limits, check the official cosplay rules before the event rather than judging by photos from a previous Comiket.

Costumes that could damage the venue

Do not use costumes with wet paint, liquids, or other materials likely to stain or damage the facility.

An item that is prohibited from being brought into Comic Market does not become acceptable simply because it is part of a costume.

Police, firefighter, and security-style cosplay

The rules prohibit behavior or presentation that could cause a participant to be mistaken for a real police officer, firefighter, security guard, or another person exercising official authority.

A realistic uniform therefore requires particular care in how it is worn and used.

Large Costumes, Masks, Capes, and Movement Restrictions

Some costumes can be used for posing but must be adjusted while moving through the venue.

C108 lists several restrictions outside the designated Cosplay Areas:

  • Costumes taller than 2 meters or wider than 1 meter must be made safe for movement. If a large costume can be dismantled or transformed, it may be larger while posing. If you cannot move safely by yourself, you need someone to assist you.
  • Long skirts, cloaks, and capes must not drag on the floor. Hold them up or remove the relevant part while moving.
  • Helmets, masks, or other costume elements that significantly restrict your vision must be removed while moving.
  • Sharp or otherwise dangerous costume parts must be removed while moving.
  • When moving between Tokyo Big Sight and the TFT Building in swimwear, a leotard, or similar clothing, wear an outer layer.

The aim is not only costume compliance but safe movement through a very crowded venue.

Weapon-Like Props and Large Props

Props also have specific restrictions.

Items that violate Japanese law are prohibited, including regulated firearms, blades, and replicas that may fall under legal restrictions.

For toy guns such as airsoft, gas, or electric guns:

  • Remove ammunition.
  • Remove gas or other firing materials.
  • Remove batteries.
  • Make sure the gun cannot fire.
  • Put it in a bag while moving around the venue.

Props taller than 2 meters or wider than 1 meter, such as large staffs or wands, must be disassembled while moving.

Do not throw, swing, kick, or otherwise use a prop in a way that could hit another attendee.

If you are unsure whether a costume or prop is acceptable, ask staff near the changing rooms before using it.

C108 Cosplay Areas

Where Are the Cosplay Areas?

C108 lists the following Cosplay Areas:

  • East Hall 8, including indoor and outdoor space
  • Gardens, north of Conference Tower 1F
  • Rooftop Exhibition Area — afternoon only
  • Outside East Hall 7, Antenna Site Parking Area — afternoon only

West Hall 4 is not a Cosplay Area at C108.

Opening times and access can change depending on entry queues, congestion, weather, and event operations. Outdoor areas may be restricted in bad weather.

Use the official C108 Information Map for the exact locations.

C108 Information Map

https://www2.comiket.co.jp/info-a/TAFO/C108TAFO/C108_InternationalMap.pdf

Photography Is Not Limited to the Cosplay Areas

This is an important point that is easy to misunderstand.

Comic Market’s official rules say that cosplay and photography may take place elsewhere in the venue, including inside the exhibition halls, as long as the rules are followed and the location is safe.

The Cosplay Areas are designated gathering places for convenience. They are not the only places where photography can take place.

However, that does not mean every location is suitable for a photo shoot.

Do not block walkways, interfere with circle sales, or create a crowd in a busy area. If staff or security decide that a shoot is causing congestion or a safety problem, they may stop the shoot, restrict equipment, or ask you to move to a Cosplay Area.

Follow on-site staff instructions even if you planned to shoot somewhere in advance.

C108 Photography Rules

Ask Before You Shoot

If a person will be identifiable in your photo or video, ask for permission before shooting.

Do not assume that someone wants to be photographed simply because they are wearing cosplay.

At busy cosplay areas, wait your turn and ask politely.

A useful phrase is:

写真を撮ってもいいですか?

Shashin o totte mo ii desu ka?

“May I take a photo?”

If the cosplayer says no, does not want a particular pose, or says it is not a good time, respect the answer and move on.

Watch the Background Too

Permission is not only about the person posing for you.

C108 prohibits photographing or publishing other identifiable participants without permission, including people who are clearly recognizable in the background.

Before taking a photo, check what is behind your subject.

This is particularly important inside crowded halls, where a wide shot can easily include people who did not agree to be photographed.

Hidden or covert photography is also prohibited.

Do Not Pressure Cosplayers for Poses or Long Sessions

Comic Market asks photographers to consider both the subject and the people around them.

Avoid:

  • Photographing one person for an excessively long time
  • Surrounding one cosplayer with a large group of photographers
  • Pressuring someone into a pose
  • Shooting from an extreme low angle
  • Taking close-up photos focused on the chest, buttocks, genitals, or similar areas
  • Repeatedly asking for contact information
  • Following or harassing someone

Intentional excessive exposure for a photo is also prohibited.

If a shoot is attracting a crowd, cooperate with the cosplayer and other photographers so that people can still move safely.

Photography Equipment May Be Restricted

C108 prohibits infrared cameras, special miniature cameras, and other equipment that the Comic Market Committee considers inappropriate.

Reflectors, tripods, flash stands, and similar equipment are not always prohibited, but staff may restrict them when the venue is crowded. At some times there may be no area where this equipment can be used safely.

Strong lighting that could cause an accident is prohibited.

If staff tell you to stop using a piece of equipment, put it away.

Ask Again Before Posting a Photo Online

Treat taking a photo and publishing it as separate permissions.

The C108 photography rules say that when a person can be identified, permission is required for both photographing and publishing.

So after getting permission to take the photo, confirm whether the person is comfortable with you posting it publicly on X, Instagram, a blog, or another platform.

A useful phrase is:

この写真をSNSに載せてもいいですか?

Kono shashin o SNS ni nosete mo ii desu ka?

“May I post this photo on social media?”

If the person sets conditions, such as tagging an account, hiding another person’s face, or not publishing a particular image, follow those conditions.

A pose for the camera is not automatic permission to publish.

A Short Summer Safety Note for Cosplayers

C108 is a summer event, and several cosplay areas are outdoors. Heavy costumes, wigs, masks, armor, and layered clothing can increase heat stress.

Take breaks, drink regularly, and stop if you feel unwell. Outdoor cosplay areas may also be restricted because of weather.

For WBGT, cooling items, heat-illness warning signs, and when to seek help, use the dedicated heat guide rather than relying on this article.

Comic Market 108 Heat Guide: Cooling Products, WBGT, and When to Get Help

Final C108 Cosplay Checklist

For Cosplayers

Before C108:

  • I have the correct admission for the day I am attending.
  • I will arrive and leave in regular clothes.
  • I have ¥500 for cosplay registration for each day I cosplay.
  • I checked my costume and props against the current rules.
  • I know which changing room I will use.
  • I know that registration to change into cosplay closes at 15:30.
  • I will allow enough time to change back before the changing room closes.
  • I will follow staff instructions if an area becomes crowded.

For costume repair items, camera batteries, summer supplies, cash, and other packing details:

What to Bring to Comic Market 108: Complete Packing Checklist

For Photographers

Before taking cosplay photos:

  • I have the admission required for C108.
  • I will ask before taking an identifiable photo or video.
  • I will check the background for other identifiable attendees.
  • I will not block walkways or interfere with circle spaces.
  • I will not pressure someone into a pose.
  • I understand that photography equipment may be restricted because of congestion.
  • I will ask before posting an identifiable photo or video online.
  • I will stop, move, or put equipment away when staff instruct me to do so.

If you are choosing between August 15 and 16 mainly for cosplay, see:

Which Day Should You Visit Comic Market 108? Day 1 vs. Day 2

Official C108 Cosplay Information

Comic Market rules and on-site operations can change because of congestion, weather, or safety conditions. Check the official information again shortly before attending.

Official C108 cosplay information in English:

https://www2.comiket.co.jp/info-a/TAFO/C108TAFO/cosplay.html

Official cosplay and photography support page in Japanese:

https://www.comiket.co.jp/info-p/

C108 information for international participants:

https://www2.comiket.co.jp/info-a/TAFO/C108TAFO/index.html

C108 Information Map:

https://www2.comiket.co.jp/info-a/TAFO/C108TAFO/C108_InternationalMap.pdf

Final Advice

The key distinction is simple: changing, taking a photo, and publishing a photo are separate steps with separate rules.

Arrive in regular clothes, use the official changing room, keep costumes and props safe while moving, ask before photographing people, confirm before posting their images, and change back before you leave.

On the day, current staff instructions take priority over anything you saved in advance.

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