One Publishing Co., Ltd.'s super-mystery magazine "Mu" is collaborating with FamilyMart Co., Ltd.'s "Same Price, 45% More" campaign on two T-shirts and a set of acrylic charms, going on sale via FamilyMart Online from Friday, August 7, 2026.
The illustration "Aliens Gathering at FamilyMart" (art by Aoi Kusano), originally drawn as the key visual for the "Mu x FamilyMart Online Lottery" that drew a big response when it ran in February 2026, has now become a glow-in-the-dark T-shirt — the Unconfirmed Life Form T-Shirt. The second design isn't an unconfirmed life form itself, but a "Taste-Confirmation Increased-Volume Object T-Shirt." Both feature the Mu logo printed in FamilyMart's signature colors.
Also joining the lineup are eye-catching acrylic charms measuring a substantial 4 to 5cm. There are 12 designs in all, carrying phrases like "Is This a Second Helping?," "Giant Food & Drink Object Approaching," and "Let's Go — Beyond Full," guaranteed to earn a second glance from anyone who spots them.
FamilyMart Online
The Story Behind the Collaboration
The collaboration items are built around the "outsized urban legend" motif from FamilyMart's new TV commercial "Same Price, 45% More," airing nationwide since Tuesday, August 4. In the commercial, Kotaro Yoshida plays a UMA (unconfirmed mysterious animal) researcher and Rikako Yagi plays an urban legend reporter, vividly investigating a sudden "outsized urban legend" — a giant FamiChiki floating in the sky.
The lineup reflects both the "mysteries and wonders of the world" — UFOs, UMAs, paranormal phenomena, ancient civilizations, urban legends — that Mu has explored from its own unique angle, and the "increase" keyword central to the commercial.
Product Details
Taste-Confirmation Increased-Volume Object T-Shirt (Glow-in-the-Dark)
- Price: ¥3,500 (tax included: ¥3,850)
- Release Date: Friday, August 7, 2026
- Availability: Nationwide
- Size: Free size (L)
- Details: A collaboration T-shirt between "Mu" and the "45% More" campaign. Glow-in-the-dark fabric that glows mysteriously in the dark.
Purchase here: https://famima-online.family.co.jp/?utm_source=newsrelease-muu&utm_medium=referral&utm_campaign=260811muu
Unconfirmed Life Form T-Shirt (Glow-in-the-Dark)
- Price: ¥3,500 (tax included: ¥3,850)
- Release Date: Friday, August 7, 2026
- Availability: Nationwide
- Size: Free size (L)
- Details: A collaboration T-shirt with "Mu." Glow-in-the-dark fabric that glows mysteriously in the dark.
Purchase here: https://famima-online.family.co.jp/?utm_source=newsrelease-muu&utm_medium=referral&utm_campaign=260811muu
めじるしアクリルチャーム (Set of 3)
- Price: ¥2,500 (tax included: ¥2,750)
- Release Date: Friday, August 7, 2026
- Availability: Nationwide
- Details: Charms designed around the mysteries of "the world," "wonder," and "increase." A substantial 4 to 5cm in size, with a silicone ring for attaching to umbrellas, bottles, and more. 12 designs total, 3 per set, across 4 set variations.
Purchase here: https://famima-online.family.co.jp/?utm_source=newsrelease-muu&utm_medium=referral&utm_campaign=260811muu
Images are for reference only. Sales end once the planned quantity sells out. Some stores in certain regions are unable to fulfill in-store pickup orders. See the order guidance page for details on how to order.
The back cover of "Monthly Mu" (Issue 550), on sale August 7, carries a design styled after the Mu x FamilyMart collaboration, adding to the excitement around the "45% More" campaign — worth checking out alongside the collaboration goods.
About Mu
Launched in October 1979, "Mu" is a super-mystery magazine built around the theme of "taking on the mysteries and wonders of the world," marking its 46th anniversary last year. Covering UFOs, unconfirmed animals, ancient civilizations, pseudoscience, spirituality, and other "suspicious" subjects broadly, it puts forward its own perspectives and hypotheses and remains beloved by paranormal fans around the world.
- Web Mu: https://web-mu.jp/
- Mu Official X (formerly Twitter): https://x.com/mu_gekkan
- Mu Official Instagram: https://www.instagram.com/gekkan_mu/
- Mu Official Online Store: https://shop.web-mu.jp/
