VAYONN SEN Birthday Project 2026
#️⃣ Project Hashtag
VAYONN SEN Birthday Project Please help spread the word about the project by using the 2026-specific hashtag🙌
Project-specific hashtag
#happySENday_2026
💫 Benefits of supporting this project
●VAYONN You can celebrate SEN-kun's birthday together.
●You can run congratulatory advertisements for SEN-kun in Korea and Japan.
👤 About this project planner
✍️ About the background and thoughts behind the project
We planned this event because we wanted to celebrate SEN (Shibuya Sen)'s first birthday together with his fans in a grand manner since his debut as VAYONN.
Our goal is to post congratulatory advertisements in South Korea, where SEN-kun is active, and in Japan, his country of origin.
Thank you for your cooperation.
📋 Project Overview
VAYONN This is a project to celebrate SEN's birthday.
📢 Advertisement content
[Korea] Hapjeong Station CM monitor ad
[Japan] Shibuya Station poster ad
Both are scheduled to be posted on dates that include SEN-kun's birthday, December 25th.
Main recommended advertisement
●CM monitor advertisement (video advertisement)
[CM monitor advertisement (video advertisement)] Image

●[Certain station in Tokyu Tokyo] B0/B1 poster
[Station poster] Image

📅 Schedule
| Date | Contents |
|---|---|
| October 15, 2026 to October 29, 2026 | Support application period |
| December 23, 2026 to October 29, 2026 | ★Station poster★ |
| December 16, 2026 - December 29, 2026 | ★CM monitor advertisement★ |
*Please note that the period may be slightly delayed depending on the progress of the project.
📡 Confirmation of project progress
The progress of the project will be reported on open chat and X (formerly Twitter).
📝 Precautions when purchasing
● If you wish to include the name in the advertisement, please enter the name in the "Special Notes" in the cart. Once added to your cart, it will appear below immediately.
● If you do not wish to have your name published, please select [I do not wish to have my name published in the advertisement] and leave it blank.
● Emoji cannot be reflected. Thank you for your understanding.
💰 About support money
Target amount
If the support amount exceeds the target amount, we will carry out additional promotional advertising!
We will inform you about the advertising content to be added on this project page, X (Twitter), etc.
How to use the support money
The collected support money will be used for the following purposes.
●Advertisement cost
●BirthdayJAPAN administrative fee
How to use the surplus
Insta advertisement
If the amount exceeds the target amount, we will use it for increasing the size of the advertisement and SNS advertisement.
If carried over to the next event, the income and expenditure will be reported in open chat.
If the donation does not reach the target amount
Change the advertisement content according to the donation and execute.
Even if the target amount is not reached, Korean advertisements will be given priority and advertisements will be posted to the extent possible.
We will provide details in open chat. Thank you for your understanding.
🎁 Regarding returns
The return amount will include tax.
📦 About returned product data/income and expenditure report data
● Returned products in data format will be sent by the planner via email or open chat, etc.
● Please contact the planner for other details.
VAYONN SEN Birthday Project 2026 Open chat for supporters
If you have supported us,Please use the project's LINE open chat to connect with the planners and get excited about the latest information about the project.
⚠️ Notes
●After signing a confidentiality agreement with the planner, we will provide the information of the supporter for the purpose of providing returned items and income and expenditure report data. (Excluding phone number and address) Thank you for your understanding.
●For returned products that include the supporter's name in the advertisement, it will always be written in the returned product column, so please check to make sure it is correct. Please note that even if you do not write your name in the advertisement, the system will display a field for you to fill in at the time of purchase.
●Although it is displayed in multiple languages, we use automatic translation, so the expressions in foreign languages may differ. Please note that "Japanese" is the correct sentence.
●Consumption tax will be charged on the support amount. Tax will be added at the time of payment. Please note that the amount that planners can use for their projects is the amount collected excluding tax.
●Once you have supported us, we cannot cancel or refund your support.
💳 Payment method
Support funds can be paid using the following methods.
●Credit card (Visa, Mastercard, JCB, American Express)
●PayPal
●Bank transfer
*If you choose bank transfer, please make the transfer within 7 days of payment registration and by the end date of support. If the payment cannot be confirmed, it will be automatically canceled.
📩 For inquiries
●For more information about Clafan or inquiries about return items, please contact the organizer, X (https://x.com/senshibuya_jp?s=11&t=O6uN9WGqSmMHzdJLEjtLXw) Please contact us.
●For inquiries regarding payment methods, please contactBirthdayJAPAN LINE.https://lhco.li/4fCIYVF
❓ Frequently Asked Questions
Is it possible to cancel/refund?
Once you have supported us, we cannot cancel or refund your support. Who should I contact if I have questions about the
project?
Please contact the planner for any questions regarding project details or return items.
For inquiries regarding payment, please contactBirthdayJAPAN LINE.
Will there be additional shipping charges to receive the returned item?
There is no additional shipping charge for shipping returned items.
Can I support multiple units? Also, in that case, can the returned items be combined?
Support for multiple units is possible. However, returned items cannot be combined.
Where can I find other FAQs? Please check the Frequently Asked Questions page for
BirthdayJAPAN.