It seems the mystery my father left behind
can be solved on the Shimanami Kaido!?
Shimanami Kaido Mystery Solving Journey ~Letters Weaving Thoughts and Voices Resonating on the Sea~ Flyers for the local version flyer at three roadside stations on the Ehime side of the Shimanami Kaido: Oshima, Hakatajima, and Omishimafree. Those who solve the mystery of the father will be entered into a monthly prize draw! You can visit just one island, or visit two or three islands to find different grand mysteries and endings. Feel free to give it a try!

Flyer distribution locations
Once you get your hands on the flyer, try to decipher the mystery left behind by "my father." The mystery my father left behind is a little difficult...
In that case, scan the QR code on the flyer to access your partner "me" and try to solve my father's mystery together with "me"♪ There are lots of mysteries scattered around...
- Will the day come when I can be reunited with my father?
- Why did "my father" suddenly disappear 10 years ago? And where did he go?
By the way!the prequel (web version) of [Shimanami Kaido Mystery Solving Journey ~Letters Weaving Thoughts and Voices Resonating on the Sea~]Were you able to complete
If you haven't completed the game yetthe prequeland access "me"! You'll be able to enjoy the local version even more!
~It's a prologue to say "Welcome home" to you~
Eight years ago, my beloved father suddenly disappeared, leaving me his cherished pendant.
Time passed, and I was handed an envelope sent by my father. Together with "you," I deciphered its mystery.
And, along with the feelings entrusted in the letter,
I met someone who had awakened, and learned the truth of what happened eight years ago…

overview
- Participation fee: Free
- Event details: March 31st to November 30th, 2025
- Area: Shimanami Kaido, Oshima, Omishima, Hakata Island
- Estimated travel time: 4-5 hours (1 island)
- Flyer distribution locations: Roadside Station Yoshiumi Ikiikikan (Oshima), Marine Oasis Hakata (Hakatajima), Tatara Shimanami Park (Omishima)
- Format: Same-day participation OK, no time or number limit, smartphone required