Fanplus Inc.

Fanplus Inc. (Headquarters: Shibuya-ku, Tokyo; CEO: Motoshi Sato), which operates fan sites for music artists, released the official app for Phantom Theta, an idol group produced by Ado with a "retro horror" concept, on Saturday, November 1, 2025.

With this app, you can not only receive the latest information on Phantom Theta in a timely manner, but also enjoy fan club exclusive content such as "Theta Diary."
You can also turn on push notifications to stay up to date with the latest news and special moments.

Please take this opportunity to download the "Phantom Theta Official App" and enjoy member-only content.

At the same time, a live broadcast will be held to commemorate the first anniversary of the official fan club "Heine." Please enjoy that as well.

◼︎Click here to download the app and for more details
https://phantomsiita.com/feature/app

*Available on the App Store and Google Play
*This is a smartphone-only app.
Recommended environment: iOS 15.0 or later / Android 9.0 or later
*Some smartphone models are not compatible.
*Android and Google Play are trademarks or registered trademarks of Google Inc.
*iPhone and App Store are trademarks of Apple Inc., registered in the U.S. and other countries.

■ Phantom Theta Official Fan Club "Heine"
https://phantomsiita.com/
(Compatible with PCs and smartphones)

◼︎About the "Heine" members-only live broadcast
Date and time: Tuesday, November 4, 2025, 8:00 PM (scheduled)
How to watch: Live streaming app "FanStream"
*For details on how to watch, please check the official fan club "Heine" website.

<List of member-only content>
・Theta Diary
A blog where members write about their private lives and behind-the-scenes work.

・Video Warehouse
Behind-the-scenes videos from live performances and music videos, exclusive comment videos,
A variety of video content, including short videos, will be released exclusively.

・Broadcasting room
A radio show where members talk freely and try out various projects.

・Photo studio
Contains photos of Phantom Theta, mainly from live performances.

・Question box
Members answer questions from members once a week.

・Featured
We deliver special content such as profile books.

・Birthday message
You will receive a message from Phantom Theta on your birthday.
*You can view it from My Page.

・Digital membership card
You can view your nickname, favorite member, membership number, and membership period on your My Page.
*Membership numbers are only available for annual plans.

・Membership benefits (annual plan only)
Those who sign up for the annual plan will receive a "Phantom Note" as a sign-up bonus.

・Continuation benefits (annual plan only)
Those who continue with the annual plan will receive a continuation bonus, the "Heine Card."

・Ticket advance sale
Members will receive priority access to advance ticket reservations for events.
*Tickets cannot be guaranteed.
*Priority may change depending on advance orders.
*Some events and performances are not eligible.

·others
We hold live concert-related events, fan club member-only events, and more on an irregular basis!

Phantom Theta can only be seen here, and there is a lot of member-only content!
Please enjoy the official fan club.

[Phantom Theta Profile]
The kanji spelling is "Kaikichou"
If modern idols are like butterflies, then Phantom Theta is a moth, a heretical presence in the idol industry.
It's so terrifying and beautiful that you want to reach out even though you know it's scary.
It is our hope that she will become an idol worthy of the word "idol."
New to some, nostalgic to others. Here is a true Japanese idol.

*The company names and product/service names listed are trademarks or registered trademarks of the respective companies.

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