If you visit Don Quijote (ドン・キホーテ / Donki) in Japan, you might notice a red “18” symbol with a prohibition mark on certain sections of the store.

What does it mean?
Simply put: No one under 18 years old is allowed to enter.

This article explains what foreign visitors should know.

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🔞 What Is the “18” Prohibition Mark?

In Donki stores across Japan, you may see a sign with the number 18 inside a red circle, often with a slash or clear warning notice.

This means:

🚫 No entry for anyone under 18 years old.

Even if you are with your parents.
Even if you are just “looking.”
Even if you are a tourist.

If you are under 18, you are not allowed to enter that area.

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🛍️ What’s Inside the 18+ Area?

You might be curious.

What kind of products are there?

The answer is simple:

👉 Please check it yourself on-site (if you are 18 or older).

In Japan, stores clearly separate adult-only products from general merchandise. This is part of Japan’s retail rules and social norms.

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⚠️ What Happens If Someone Under 18 Enters?

Short answer:

It will cause serious trouble.

Store staff take age restrictions very seriously.
If a minor enters:

• Staff may immediately escort them out
• The guardian may be warned
• It could create unnecessary problems during your trip

Japan is very strict about age-related rules.

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🤔 “But I Really Want to See…”

If you are under 18 and still curious:

Please wait until you become an adult.

That’s the rule in Japan.

There are plenty of other fun sections inside Donki—snacks, cosmetics, souvenirs, anime goods, electronics, and more—that everyone can enjoy.

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🌏 Important Tip for Foreign Visitors

Japan clearly marks age-restricted areas, and these rules apply equally to:

• Japanese citizens
• Foreign residents
• Tourists

When you see the 18+ mark, simply understand:

It’s adults only. No exceptions.

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Final Advice

Donki is one of the most exciting places to shop in Japan. Just follow the signs, respect the rules, and enjoy your visit responsibly.

And if you’re not 18 yet?

There’s still plenty of time. 😊

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