Solve Mysteries Across Miyagi, Yamagata, and Fukushima to Win Amazing Prizes! ♪
Event Period:
Friday, August 1, 2025 – Sunday, November 30, 2025
Event Locations:
A total of 50 spots across 25 municipalities in the Sennan region of Miyagi Prefecture, the Okitama region of Yamagata Prefecture, and the Kenpoku region of Fukushima Prefecture — featuring 25 sweets shops and 25 adventure activity facilities.
Event Areas and Participating Municipalities
Miyagi Prefecture – Sennan Region:
Shiroishi City, Kakuda City, Zao Town, Shichikashuku Town, Ogawara Town, Murata Town, Shibata Town, Kawasaki Town, Marumori Town
Yamagata Prefecture – Okitama Region:
Yonezawa City, Nagai City, Nanyo City, Takahata Town, Kawanishi Town, Oguni Town, Shirataka Town, Iide Town
Fukushima Prefecture – Kenpoku (Northern) Region:
Fukushima City, Nihonmatsu City, Date City, Motomiya City, Koori Town, Kunimi Town, Kawamata Town, Otama Village
How to Participate
This is a mystery-solving rally held across 50 selected locations in the three southeastern Tohoku prefectures (Miyagi, Yamagata, and Fukushima), using the LINE app.
Use the following three tools to solve the mysteries at each location:
- The Mystery-Solving Booklet
- Mystery Posters displayed at each participating shop and facility
- The official LINE account for this event
As you solve more mysteries, you’ll become eligible for increasingly luxurious prizes through our prize lottery!
To get started, add the event’s official LINE account (found on the flyer) as a friend, then visit one of the participating spots to pick up your Mystery-Solving Booklet.
We look forward to your participation!
Contact Information
Miyagi Prefecture, Ogawara Regional Promotion Office
Regional Promotion Division, Second Promotion Section
TEL: 0224-53-3182
