How to Place a BTS Jimin Birthday Advertisement: 2026 Sen-il Guide
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What is a BTS Jimin support ad? (Basic information for birthdays and ARMYs)
BTS Jimin (Park Jimin) was born on October 13, 1995. The period around October 13 each year is known as "Jimtober," when ARMYs around the world celebrate his birthday by placing "saengil (birthday)" ads throughout Japan.
Saengil ads (응원광고) are a form of support advertising that originated from K-Pop fan culture, where individual fans or fan clubs pool funds to display videos and images of artists on digital signage and outdoor billboards. For Jimin, the saengil culture is so deeply rooted among ARMYs that in 2025, multiple ads will be placed across Japan, including Shibuya, Shin-Okubo, Dotonbori in Osaka, Nagoya, and Fukuoka.
With all BTS members having completed their military service in June 2025, the group is scheduled to embark on the "BTS WORLD TOUR 'ARIRANG'" as a complete unit in 2026. Interest in Jimin is at an all-time high, and an increase in participants for support ad projects for his birthday in October 2026 is anticipated.
Checking HYBE and BigHit Music Guidelines
Before placing a support ad, please be sure to check the guidelines of HYBE (formerly Big Hit Entertainment) and BigHit Music, to which Jimin belongs.
- Use of portraits and photos: When using officially released photos or excerpts from official videos, permission from the agency may be required. For photo card images taken by fans, please check their usability individually.
- Use of music: If Jimin's music is used in video advertisements, copyright permission is required. Unauthorized use constitutes copyright infringement.
- Prohibition of commercial use: It is prohibited to divert support ads for commercial purposes.
HYBE's latest guidelines may be updated on Weverse or official social media. Before posting, always check the latest information on the official HYBE JAPAN website or BigHit Music official website. Oshi-Ad provides support for checking agency guidelines when applying.
Popular Media and Costs for ARMYs
| Media Type | Features | Estimated Cost |
|---|---|---|
| Digital Signage | Inside stations and commercial facilities. Applications can be made from as early as 1 week in advance. Easy for individuals to place. | From approx. 30,000 yen |
| Outdoor Vision (Shibuya, Shin-Okubo, etc.) | High appeal to passersby. Significant viral effect on social media. | Tens of thousands to hundreds of thousands of yen |
| Ad Truck | Circulates concert venues and bustling areas. Stands out with video and audio. | Tens of thousands to over a hundred thousand yen |
| LED Ad Cruise (Dotonbori, Osaka) | Osaka's representative saengil spot. Features projection from the water. | Inquire for details |
Projects where multiple ARMYs can participate with as little as 500 yen per share through crowdfunding are also increasing. It is possible for fans to share the cost of advertising without one person bearing the entire expense.
Popular Display Areas in Tokyo and Osaka
Tokyo Area
- Shibuya (around Yunika Vision): During Jimin's birthday in 2025, ads will be broadcast for one week from October 7th to 13th. Located near the Shibuya Scramble Crossing, it's a popular spot where ARMYs gather.
- Shin-Okubo (K-Vision I, K-PLAZA): Shin-Okubo, a hub for K-Pop fans, is considered a sacred place for saengil ads. Multiple digital billboards with Korean language support are also installed.
Osaka Area
- Dotonbori (LED Ad Cruise): Osaka's premier K-Pop saengil spot. Projections from LED boats on the water are visually striking and highly shareable on social media.
- Umeda/Namba Area: Numerous digital signages are available in commercial facilities, offering a variety of media that are easy for individuals to use.
Other Cities
In 2025, there were also successful placements in Nagoya, Fukuoka, Kobe, Sapporo, and Akita. ARMYs residing in regional areas can also consider local placements.
How to Place a Support Ad
Step 1: Determine Objective and Budget
If you wish to place an ad to coincide with his birthday (October 13th), it is recommended to complete the application 2 to 4 weeks before the display date. It will be smoother if you decide in advance whether to bear the cost yourself or raise funds from multiple people through crowdfunding.
Step 2: Choose Media and Area
Select the desired area and media type. For a budget of around 30,000 yen, digital signage offers the widest range of options.
Step 3: Prepare Creatives
Prepare the images and videos to be used. Please use materials that comply with HYBE and BigHit Music guidelines. Since recommended sizes and durations vary by media, confirmation is required before applying.
Step 4: Application and Payment
Apply directly to the platform or media company and pay the fee. In the case of crowdfunding, the ad will be confirmed once the target amount is reached.
Step 5: Display and Spread
On the day of display, taking photos and videos on-site will be the starting point for social media spread. Posting with hashtags like #JiminBirthday will reach ARMYs worldwide.
What is Oshi-Ad?
Oshi-Ad (https://app.oshi-ad.com) is a service that allows individuals to place advertisements, such as on digital signage, for their favorite idol starting from approximately 30,000 yen.
- Anyone can apply: No corporate contract required. Individual ARMYs can complete the application and payment directly.
- Can be displayed in as little as 1 week: Due to short lead times, it may be possible even just before a birthday.
- Crowdfunding feature allows participation from 500 yen per share: You don't have to bear the full cost alone; ARMYs can share the expenses. The crowdfunding fee is 10% (one of the lowest in the industry).
- Support for checking agency guidelines: If there are agency guidelines like HYBE's, you can consult for verification. Even first-time support advertisers can use the service with peace of mind.
For Jimin's birthday in 2026 (October 13th), it is ideal to start preparations around August-September. Please search for potential media candidates on Oshi-Ad. https://app.oshi-ad.com