#Japan #Ichinomiya #Mystery Adventure #Central Japan #Mitsumaru-kun

Discover the Excitement of 'SA Mystery Adventure'

Get ready for an unforgettable experience at the Central Japan Service Areas (SA) as they launch an interactive puzzle-solving adventure known as 'SA Mystery Adventure: Recommended Mysteries and Ancient Treasures.' Scheduled to run from April 1 to April 26, 2026, this thrilling event will take place at two locations: the Komagatake SA (uphill) and Ena Gorge SA (downhill) along the E19 Chuo Expressway.

The adventure is designed for all ages and can be enjoyed during a break from your travels, whether with family or friends. Using your own smartphone and an exclusive LINE account for the event, participants will explore the SA, searching for hidden hints and clues to solve a series of mysteries. Best of all, it's free to participate!

Earn Rewards for Solving Mysteries

As a bonus for completing all puzzles, participants can receive discount coupons redeemable at participating SA stores as well as a digital achievement certificate. Additionally, those who complete a short survey after the game will be rewarded with a unique novelty item, the 'Mitsumaru-kun Sparkling Sticker.'

Engaging Storyline

Legend has it that ancient treasures lie within the depths of the Chuo Expressway's SA. As a participant, you'll embark on a journey armed only with your smartphone, searching for concealed hints throughout the area. Can you unlock all the puzzles and discover the coveted 'treasure'? Take a break from driving and immerse yourself in this intriguing challenge!

Please note: This story is fictional.

Event Details

• - Event Name: Real-life Puzzle Adventure 'SA Mystery Adventure: Recommended Mysteries and Ancient Treasures'
• - Date: From April 1, 2026 (Wednesday) at 9:00 AM to April 26, 2026 (Sunday) at 11:59 PM.
• - Coupon redemption and sticker collection: Available until May 31, 2026 (Sunday), subject to store hours.
• - Location: E19 Chuo Expressway, Komagatake SA (uphill) and Ena Gorge SA (downhill)
• - Participation Fee: Free
• - Requirements: Smartphone with the LINE app installed (data charges apply).

How to Participate

1. Start your Adventure: Register for the exclusive LINE account by scanning the QR code from the 'Puzzle Guide flyer' available in the SA.

2. Send the Passphrase: In the LINE chat, send the provided passphrase for your current SA to kick off the puzzle-solving adventure.

3. Explore and Solve: Use the hints sent via LINE to locate clues around the SA and unravel the mysteries.

4. Claim Rewards: Successfully solve the final mystery to earn valuable coupons and a digital achievement certificate. Plus, survey participants will receive the special 'Mitsumaru-kun Sparkling Sticker.'

Keep in mind that LINE is a registered trademark of LINE Yahoo Corporation. All images are for illustration purposes only.

For media inquiries, visit our information service 'NEXCO Central Japan SA/PA Data Garage' for high-quality images suitable for newspapers and magazines. Access it here.