Pre-orders for IRENE's 1st Album, "Biggest Fan," with exclusive original bonus items available only mu-mo SHOP and Weverse Shop, have begun!
Furthermore, by drawing lots prize has been announced where you can win VIDEO CALL EVENT (online autograph session) exclusively at mu-mo SHOP! Don't miss out on this valuable limited-edition prize that you can't get anywhere else!
 
 
[Target Products]
Released in South Korea on March 30, 2026 (Monday)
■『Biggest Fan』(Photobook Ver./2 types, random) ¥4,074 (tax included)
■≪Set of 2≫『Biggest Fan』(Photobook Ver.) ¥8,148 (tax included)
■『Biggest Fan』(Compact Ver.) ¥3,212 (tax included)
■『Biggest Fan』(TV Ver./2 types, random) ¥4,606 (tax included)
■≪4-Type Set≫『Biggest Fan』(Photobook Ver./2-Type Set) (Compact Ver.) (TV Ver./2 Types Random) ¥15,966 (tax included)
 
 
[Purchase Site]
● mu-mo SHOP
mu-mo
 
●Hi, mu-mo (For overseas)
mu-mo
*Please note that Hi, mu-mo is not eligible for the prize by drawing lots.
 
●Weverse Shop
https://go.weverse.io/qt3S/sjswphmj
 
[Estimated delivery date]
Please check with each individual purchase site.
*Only pre-orders placed within one week of the release date will be reflected in the initial sales figures.
*Please note that due to the nature of imported goods, there may be some creases, scratches, tears, or stains. We cannot accept returns or exchanges for these reasons. Thank you for your understanding.
 
 
[Purchase Bonus]
● mu-mo SHOP / Hi, mu-mo
Photobook Version (2 types, random) / Compact Version / TV Version (2 types, random)
...One original trading card (2 types, randomly selected) will be given for each item purchased.

≪Set of 2≫ Photobook Version (2 types)
...One complete set of original trading cards (2 types in total) will be included with each product purchase.
 
≪Set of 4≫ Photobook Ver. (Set of 2) / Compact Ver. / TV Ver. (2 random types)
...For every set of products purchased, you will receive two complete sets of original trading cards (2 types in total).

*Please note that if you add items to your cart individually, you will not be eligible for the complete set bonus.
 
●Weverse Shop
L-size bromide print (1 type in total)
*Size: 127mm x 89mm
*This offer applies to Weverse Japan domestic shipping products purchased through the Weverse Shop.
 
*Please note that the number of products and bonuses is limited, and sales will end once the planned number of items has been reached.
 

[by drawing lots (mu-mo SHOP exclusive)]
Invitation to VIDEO CALL EVENT (Online Autograph Session)
 
* by drawing lots is an exclusive offer available only through mu-mo SHOP.
*One entry is automatically granted for each eligible product purchased, two entries are automatically granted for each set of two products purchased, and four entries are automatically granted for each set of four products purchased.
*For details, please check the bonus description in mu-mo SHOP shopping cart.
 
<Application period for prize by drawing lots >
From 19:00 on Thursday, March 19, 2026 to 23:59 on Sunday, April 5, 2026
 
*Only the person who placed the order can apply.
*If you wish to apply for the online autograph session, please read the following notes carefully before applying.
*Even during the application period, there is a limited number of products and purchase benefits, so sales will end once the limit is reached.
 
 
[Regarding VIDEO CALL EVENT (Online Autograph Session)]
This is VIDEO call event (online fan signing event) using the KakaoTalk app, lasting approximately 2 minutes.
We will present the winner with a postcard signed by the winner.
*The signed postcard will be shipped separately from your ordered items at a later date.
*Please note that if you are unable to attend the event, we will not be able to send you the signed postcard separately.
 
<Online Autograph Session Winner Announcement>
Scheduled for April 7, 2026 (Tuesday)
*Only winners will be contacted by email from mu-mo SHOP.
 
<Online autograph session dates>
Scheduled to be implemented in mid-April 2026
*The date and time of the event will be announced via email to the winners only, from mu-mo SHOP, once it has been decided.
 
▼ Notes on VIDEO CALL EVENT (Online Autograph Session)
*Participation is limited to the winner only.
*If the name of the person placing the order and the name of the winner are different, you will not be able to participate.
*After winning, we may ask you to show us a photo ID for verification.
*Please note that cancellations and changes to the orderer are not possible after the order process is complete.
*To receive the winning notification email, please disable any domain-specific email filtering or allow "mu-mo" beforehand. We will not resend the email. If you do not receive the email, you have not been selected. We cannot be held responsible if the email is not delivered correctly due to your circumstances, such as domain filtering.
*Winners will be selected through a strict by drawing lots, and only winners will receive a notification email at the email address they registered.
*Further details regarding participation in this event will be provided separately only to the winners.
*Winners will be contacted and asked to fill out the application form. Please note that if you miss the application deadline, your winnings will be invalidated.
*Please note that once you receive notification of your win, we cannot accept cancellations, refunds, or transfers of the product price for any reason if you are unable to participate. Also, please understand that we cannot send you only the signed postcard.
*Minors must obtain parental consent before purchasing. If a minor applies, it will be deemed that the application was made with parental consent.
*Participation is open to those residing outside of Japan, however, please note that applications may not be accepted if the purchase is made by someone other than yourself, such as through a purchasing proxy service. Applications are accepted if you use a shipping proxy service.
*Transferring the winning rights and signed postcard to others (including relatives), reselling them, etc., is strictly prohibited.
*Copying, forging, selling for profit, or listing winning emails on auctions or other platforms is strictly prohibited for any reason whatsoever. Winning emails obtained through resale or other means will be considered invalid.
*If any fraudulent activity is discovered, the winning entry will be invalidated.
*Please follow the instructions and precautions given by the staff on the day of the event. Failure to follow instructions may result in being denied participation.
*We are unable to respond to inquiries regarding the results of the lottery.
*Please note that if you are late for the designated meeting time that will be notified to you when you win, your winning will be invalid and you may not be able to participate.
*Signed postcards for winners who participated in the event will be sent separately from the purchased items at a later date.
*We will not retry or take any other measures in the event of a connection failure caused by the customer's communication conditions.
*The event, including footage of you, will be monitored and recorded by the event administrator. If the administrator deems the event inappropriate, the broadcast may be cut off.
*In the event of unavoidable circumstances such as natural disasters, illness or accidents involving performers, transportation disruptions, or equipment malfunctions, the organizers reserve the right to cancel, postpone, or change the date, time, or content of the online autograph session. Please note that in such cases, refunds or transfers of the product price will not be possible.
*Data communication charges are the responsibility of the customer.
*If there are any problems with the winner's network, they may not be able to participate, so please check your network environment in advance.
*We are not responsible for any problems or damages caused by incorrect information provided by the winners.
* Avex Inc. and Avex Music Creative Inc. will not be involved in any disputes between customers regarding winning rights or prizes.
 
▼ Prohibited actions for VIDEO CALL EVENT (online autograph session)
If a winner engages in any of the prohibited actions listed below, Avex Inc. and Avex Music Creative Inc. may cancel the online autograph session, and the winner agrees not to object to our decision.
If you violate any of the "Prohibited Actions" listed below, or if the organizers deem you unsuitable to participate in the online autograph session for any other reason, we reserve the right to refuse your participation in the online autograph session and your future applications.
*Reselling (including but not limited to internet auctions, flea markets, etc.), transferring, lending, etc. of participation rights
*Please refrain from harassing, libeling, slandering, threatening, or asking unusual questions to artists.
*Participation by persons other than the purchaser is not permitted.
 
 
<Contact Us>
For inquiries, please contact the shop where you made your reservation or purchase.
 
● mu-mo SHOP Customer Support
https:// mu-mo
*Please contact us using the form above.
*We accept emails 24 hours a day, but we will respond to them in order during business hours. (Weekdays only, 11:00 AM - 6:00 PM)
 
●Weverse Shop Customer Center
Contact form: https://help.weverse.io/weverse
Business hours: Weekdays 10:00-12:00, 13:00-17:00 (excluding Saturdays, Sundays, and public holidays)
*We accept inquiries 24 hours a day, but depending on the volume and nature of your inquiry, it may take some time to receive a response.