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Apr 07, 2026

What is fandom? Explaining the meaning, characteristics, and difference from a fan club! Favorite advertisement (Birthday/Support advertisements) to spread fan support

ファンダムとは?意味・特徴・ファンクラブとの違いを解説!推し広告(センイル/応援広告)で広がるファンの応援

Now that oshikatsu is trending, fan connections are also being fostered. Many people feel that the real thrill of Oshikatsu is not only the existence of Oshis, but also the interaction between fans, such as enjoying Oshi-talk with other fans and taking pictures with fellow fans.

In such a situation,"Fandom"The word has become commonly used in Japan as well. Fandom refers to a group or culture of fans who passionately support a specific person, work, genre, etc., and share these things with each other!

A major feature of fandom is that fans who support the same thing connect with each other, exchange information, and carry out support activities together, rather than just the feeling of ``like'' between individuals.

In this article, we will explain the meaning of fandom, and then explain the characteristics of fandom and the difference between fandom and fan club.

We “BirthdayJAPAN” is Oshi Advertising® (BirthdayThis is an advertising agency that supports /support advertising)! ^^

By using our service, even people with no knowledge of advertising can post their favorite advertisements in public spaces such as stations and street visions.

Leave it to us, from choosing the posting location to applying for permission from your favorite agency!


Table of contents
  1. What is fandom? Explain the meaning!
    1. Origin of fandom
    2. Spreading in Japan with the K-POP trend
  2. What are the characteristics of fandom?
    1. A community connected through strong “empathy”
    2. Unique rules and culture are born
    3. Continuous support actions
    4. Highly disseminated mainly on SNS
  3. What is the difference between fandom and fan club?
  4. What you can do with the power of fandom|Advertisement (Birthday/Support Advertisement) A new form of support
    1. Favorite advertisement (Birthday/Support Advertisement) What is it?
    2. Why is it compatible with fandom?
    3. Advertise your dreams with your friends on “Oshikura Fan” (Birthday/Support Advertisement) Let's make it happen!
  5. Ads promoted by fandom (Birthday/ Support advertisement) Introducing a case study!
    1. Case study: BUS because of you i shine
    2. Case study: ZEROBASEONE
  6. Frequently asked questions about fandoms
  7. Summary
  8. BirthdayLeave it to JAPAN!
  9. ★BirthdayJAPAN SNS information★

What is fandom? Explain the meaning!

fandom images

What is “fandom” in Oshikatsu culture?A group or culture formed by fans who support a specific person, character, work, etc.refers to.

“I like it” in response to an individual’s recommendation.💕A major feature of the event is that it doesn't just end with a feeling of "'," but fans with the same support connect with each other, share information and impressions, and do support activities together.

With the spread of SNS and the ease of finding friends who share the same passion, fandoms are rapidly expanding.

In modern oshikatsu, fans are not only focusing on individual activities such as participating in oshi's concerts and collecting oshi's goods, but also communal ways of enjoying themselves, such as enjoying oshi talk with each other, taking pictures together in front of oshi's posters, and participating in concerts wearing matching clothes with fan friends. ^^💕

In other words, fandom isIt is about sharing the love for Oshi with the fan community and fostering bonds among fans.

The real pleasure of Oshikatsu in Reiwa is not only the personal relationship with the Oshi, but also the connection with friends who share the same feelings!

Origin of fandom

fandom is the English word"fan"and suffixes denoting sets or areas."-dom"It is a word that combines.

"-dom" has the meaning of "area of...", "world of...", and "community of...", and fandom is a word used to refer to an "enthusiastic fan group" or "fan culture/community."

Spreading in Japan with the K-POP trend

The English word "fandom" has been around for a long time,The reason why it has become widely used in Oshikatsu culture in Japan is largely due to the influence of K-POP.It is said that

The particular importance given to fandom in the K-POP industry is deeply connected to the system in which the results of support are clearly visualized in various numbers. K-Pop is highly competitive, and in order for idols and artists to continue their activities and survive, CD sales, audio streaming (Sumin), viewer votes, and the number of mentions on SNS are the key factors.

In order to increase these numbers and maintain a high ranking, the cooperation of fans is essential. If fans do not work together to support an artist and contribute to the artist's sales and popularity, Oshi's opportunities for media exposure and activities may gradually decline. Against this background,In South Korea, fans tend to have a particularly strong sense of solidarity and camaraderie.

Fans have a strong sense of ownership and believe that ``Oshi's activities depend on their own efforts,'' ``Let's work together for Oshi's next stage,'' and ``We want Oshi to stand on 〇〇 stage.'' We can see that they are united and cooperative for Oshi.

What are the characteristics of fandom?

heart

A fandom is a community or culture formed by fans. Here, we will explain the characteristics of fandom.

A community connected through strong “empathy”

One of the major characteristics of fandom is thatStrong connection between fansIt is. The desire to ``share my love for Oshi with others'', ``want to empathize with the charm of Oshi'', and ``want to experience the excitement of Oshi's stage together'' are the driving forces behind forming a fan community.
Deep bonds naturally form between fans as they enjoy talking about their favorites, sharing impressions of live shows in real time, and spending time together before and after events.

Also, when you feel sad because your favorite is not feeling well or an event is canceled, sharing your feelings with other fans can help you recover faster. Because you have friends who share the same feelings as you, you don't have to face it alone even when you're having a tough time.

Unique rules and culture are born

Fans naturally develop their own rules and culture for each group and work.

Additionally, there are detailed unspoken rules in the fan community, such as how to post birthday advertisements, how to trade goods, etiquette during viewing and at the venue, and etiquette for derivative works.

These rules and culture not only strengthen the bond among fans;Consideration for everyone to enjoy OshikatsuIt also becomes.

Continuous support actions

One of the major characteristics of fandom is thatContinuous support for OshiiIt is. Rather than just one-time consumption, we will make a long-term contribution through multiple CD purchases, audio streaming, audience voting, daily information dissemination on SNS, fan-sponsored projects, etc.

It is difficult to achieve high results in these activities even if individuals work hard alone, so it is necessary for fans to come together.

In particular, the K-POP fandom actively focuses on birthday projects and comeback support activities, based on the same idea that ``Oshi's success depends on their own efforts'' and ``I want Oshi to be on a big stage.''

These continuous acts of support not only support the careers of idols and artists, but also give fans themselves a great sense of accomplishment and camaraderie.

Highly disseminated mainly on SNS

One of the major characteristics of fandom is its high ability to spread information, mainly through SNS. Through platforms such as Twitter (X), Instagram, TikTok, and Weverse, we will instantly spread information on new song releases, appearance information, and news.

By actively promoting the existence of Oshi, Oshi will become known to more people, the number of fans will increase, and the range of activities will expand.

Some fans take on a variety of roles, including those who volunteer to translate for overseas, those who create and share attractive fancam videos, and those who encourage viewers to vote. These activities are not done at the request of anyone or for compensation, but are done purely out of a desire to support the career of the person I am promoting.

In K-POP, there are many cases where fans' SNS spreading power has created a huge buzz that exceeds the agency's promotion.. This high spreading power increases the influence of fandom and enlivens the overall Oshikatsu culture.

What is the difference between fandom and fan club?

companion

Fandom and fan club are different things. While a fandom is a "fan culture" or "naturally nurtured community," a fan club can be described as an "official membership service."

A fandom is a culture and community of fans who passionately love a particular person, character, or work. Refers to a wide range of fan bases that share their thoughts on SNS, enjoy derivative works, and participate in events and live performances, whether official or unofficial.

On the other hand, a fan club is a membership-based organization officially operated by an entertainment agency. We provide members-only benefits (priority tickets, limited goods, newsletters, online events, etc.) and directly support artists and organizations. Many of them require a membership fee or annual fee, and are characterized by being closed communities with a registration system.

Fandoms can be said to be more open communities than fan clubs.

What you can do with the power of fandom|Advertisement (Birthday/Support Advertisement) A new form of support

recommended advertisement

I'm sure there are many people who think, "I want to express my gratitude to my pushers!" and "Thanks to my pushers, I can do my best every day!" ^^

For fans who want to convey their warm feelings towards Oshi, there is an Oshi advertisement (Birthday/support advertisement) is recommended.

Favorite advertisement (Birthday/Support Advertisement) What is it?

Favorite advertisement (Birthday/Support Ads) are advertisements that fans place themselves to support their favorite ``favorites.''

Ads recommended by fans (Birthday/Support Advertisement), you can directly convey your feelings of ``thank you'' and ``I love you'' to your fan.

If you post at a special time, such as your favorite's birthday, the 10th anniversary of your debut, the last day of a tour, the release date of a new song, or the anniversary of XX sales, you will be able to convey your blessings and support even more strongly.

Also, when advertisements are placed inside stations or on street displays, they catch the attention of people who are not familiar with the idea. They often get interested in things like, "That idol is so cool! Who is she?" or "This girl is cute! Is she an idol?" and this often leads to new fans.

In other words, push advertising is

・Send gratitude and congratulations to the person in question
・Expand your circle of fans ・Increase your popularity

This is a very nice way to support✨💕

Why is it compatible with fandom?

A fandom is a community of fans who enthusiastically support a particular person or work. They have a strong love for their oshis, and each of them has thoughts like ``I want to do something for my oshis!'' and ``It would be fun to do something as a fan!''

Favorite advertisement (Birthday/Supporting Advertisements) are a powerful tool to visualize the support on a large scale, increase the sense of unity among fans, and at the same time attract new fans.

Fandom and push advertising (Birthday/Support Ads) are compatible with each other mainly for the following reasons.

・Everyone can realize their desire to “do something for the sake of promotion”

・Participation in advertising planning (crowdfunding type advertising) is easy to gather

・Due to the power of spreading on SNS, the exposure effect of advertisements will be many times greater than usual.

Fans who see the advertisement can feel the joy and pride of “My favorite person is here!”
Favorite advertisement (Birthday/You can enjoy taking photos in front of the support advertisement)

Fans unite to promote advertisements (Birthday/Support Advertisement), you will have more fun memories of Oshikatsu ^^♪

Advertise your dreams with your friends on “Oshikura Fan” (Birthday/Support Advertisement) Let's make it happen!

Oshikura fan
Source

``I want to advertise for promotion, but it's expensive, right?💦” “It seems difficult to publish on your own.💦I think there are many fans who think that.

By using “Oshi Club Fan”, anyone can easily place advertisements on Oshi.

Oshikura fans are Oshikura fans (Oshikura fan).BirthdayThis is a crowdfunding service specializing in support advertising.

Fans who share the same feeling of "I want to advertise for my support!" gather online and pool their funds to accomplish the project.

The characteristics of Oshikurafan are as follows.

Creating and posting projects is free!
→ If you do not reach your goal, there will be no fees or cancellation fees. You can rest assured that your support money will be refunded.

Only when this goal is achieved, a portion of the support amount will be deducted as a fee.
You don't have to worry even if it's your first time, as a dedicated person in charge will support you from planning to advertising, shipping returns, and reporting income and expenditures.

Oshikura Fan is recommended for people who think, ``It's difficult to reach out to your fan friends directly...'' or ``I don't have anyone around who is my fan, so I might not be able to do it alone.''

You can connect with friends from all over the country and the world online, and participate within a reasonable amount (starting from a small amount, such as 500 yen), making it easier to achieve big advertisements.

Oshikura fan

Ads promoted by fandom (Birthday/ Support advertisement) Introducing a case study!

Here, fandom-sponsored advertisements (Birthday/Support Advertisement) Here are some examples. Please feel free to use it as a reference.📝

Case study: BUS because of you i shine

Idol group example

August 2025, Thai idol group BUS because of you i shine (hereinafter referred to as BUS)'s fans painted Tokyo and Chiba in the color of BUS to boost their activities in Japan.🌈🌈

The person who played a central role in this project was ``Okuma Napasacon''! This major project was made possible by collecting donations from Thai fans.✨

Advertising on street vision etc. (Birthday/ support advertisement). Among them, the most impressive one was the Oshii advertisement placed on Yunika Vision (Birthday/ support advertisement)💕Eleven types of videos were aired, featuring the members.

Tokyo & Chiba are all about Thai idol BUS! Interview with the fans who “fully evangelized” with all 26 promotional advertisements!

Case study: ZEROBASEONE

📢[ZEROBASEONE World Tour HERE&NOW Encore Japan Performance Plan]🎆fireworks display🎆

🗓Date
2/18 (Wed)
*Date may change depending on the weather on the day.
⏰Schedule for the day
We will distribute and broadcast the details of the day.✨
🎥18:30~ YouTube LIVE distributionhttps://t.co/txWx2OsQfV
📺22:00〜… pic.twitter.com/ZphhvwVWjx

— ZB1_EVENT_JP (@zb1_event_jp) February 18, 2026

 

February 2026,ZEROBASEONE encore performanceA special fireworks advertisement was held to commemorate🎆🎆

The fandom “ZB1_EVENT_JP” was at the center of this project! When blue fireworks inspired by ZEROBASEONE are launched,"These fireworks are really fireworks for ZEROBASEONE."He says that he felt that💕My favorite “fireworks for pushing” is wonderful, isn’t it?✨

In this projectOver 400 fan messageshave gathered. In addition, there was a lot of response on social media, and it was a warm project that allowed fans to feel the connection.

[ZEROBASEONE] Oshi fireworks advertising interview! Behind the scenes of the “project to deliver feelings” that gathered over 400 ZEROSE messages

Frequently asked questions about fandoms

Here are some frequently asked questions about fandom.

What is the difference between fandom and "fan"?
Fandom refers to a group or community of fans who enthusiastically support a particular idol, character, work, etc., and the entire culture that is born there. On the other hand, fan is a word that expresses personal favor or interest, and does not necessarily involve a collective connection.
Is there a way to join the fandom? How do I join?
There is no concept of "joining" or "withdrawing" from fandom. This is because it refers to a group of fans who love a specific person or work, and is a culture that naturally grows.

Summary

A fandom is a group or community of fans who enthusiastically support a particular person, character, or work, and the culture that arises from this.

On the other hand, oshikatsu refers to an individual's behavior and attitude toward oshi. There are many things you can enjoy on your own, such as visiting your favorites, purchasing goods, and gathering information on SNS! ^^

Fandom and Oshikatsu are closely related. This is because fandoms are formed by the accumulation of personal motivations and connections between fans.

By working together, fans can expand the scope of Oshi's activities and make it easier to convey their feelings to Oshi.

BirthdayLeave it to JAPAN!

Read this article

“I also recommend advertising® (BirthdayI want to run an advertisement/support advertisement! ”

Isn't there a lot of people who thought so?✨

On the other hand, “But,Some people may feel that Oshii Advertising® seems difficult...'' or ``I'm worried about the procedure...''

In such a case, pleaseBirthdayPlease contact JAPAN!

BirthdayWhen you register for JAPAN's official LINE,Auto-response chat will quickly answer any questions you may have regarding Oshii Advertising®!

Additionally, you can chat with our staff or consult over the phone, so even first-time users can use our service with confidence.📞

Consultation about Oshi Advertising® → media arrangement → design production → post-posting report can all be completed with just LINE, so feel free to add us as a friend!

★BirthdayJAPAN SNS information★

BirthdayJAPAN delivers the latest information on "X (formerly Twitter)," "Instagram," "TikTok," and "YouTube."♪

In addition to information about Oshii Ads®, we also constantly send out trends related to actors, idols, VTubers, YouTubers, athletes, and information on advantageous campaigns.📱✨

Please follow us and check the latest information.

X (@birthday_ad_jp)

「BirthdayI want to check the information about JAPAN as soon as possible! ”, please follow X (old Twitter)!

In X,

    • in progressOshi Advertisement® announcement
    • Publication of Oshi Advertising® example photos and videos
    • Distribution of blog articles about actors, idols, VTubers, YouTubers, and athletes
    • Notice of advantageous campaigns

etc.,BirthdayWe deliver the latest information on JAPAN as soon as possible.

#advertisement If you give it out #BirthdayJAPAN🤗💖
Dedicated personnel such as idols, actors, YouTubers, VTubers, e-sports players, etc. will help you spread the word!

Acceptance rate 95%! Started acting on behalf of companies to apply for permission.📷✨
Also open on Saturdays, Sundays, and holidays! We will respond to your LINE inquiry within 1 business day.♪

BirthdayClick here for JAPAN's past achievements🔽… pic.twitter.com/I7uAhioBdp

— BirthdayJAPAN (@birthday_ad_jp) September 12, 2025

 

Instagram (@birthday.ad.jp)

On Instagram, we are introducing examples of Oshii Advertising® that have been implemented!

For those who are thinking, ``I want to try it myself,'' there are many posts that will surely be helpful!

If you save posts that interest you, you can conveniently refer back to them at any time.

Please follow us and use it for your daily promotion.





View this post on Instagram











A post shared by BirthdayJAPAN (@birthday.ad.jp)

 

TikTok (@birthday.ad.jp)

「I want to quickly see examples of Oshii Advertising® in my free time! ”, we recommend following us on TikTok!

You can view it in your spare time, such as while getting ready in the morning or commuting to work.♪

@birthday.ad.jp

🤍Our customer's #favorite advertisement certification shot📸🤍 #SKE48 #Makiko Saito uploaded a photo with #support advertisement😊💕 Source: https://x.com/saitomakiko_628/status/1876490520002011527

♬ Original song - BirthdayJAPAN

 

YouTube (@birthday_ad_jp)

Oshii Ad® examples are also being distributed on YouTube!

Please watch the short video to see the advertisements that interest you.

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