LOST SONG

Strange sounds in the darkness... Unearthly music from an old crystal radio... These are all the warning Asuna Watase has before a simple walk to her clubhouse catapults her into a nightmarish adventure that will take her beneath the Earth to a lost land beyond the realm of legend! Attacked by a strange monstrous creature, rescued by a mysterious stranger and pursued by a relentless enemy, Asuna finds herself enmeshed in a centuries old mystery that will bind her to a strange young defender and lead her inevitably, towards a secret that may hold the key to life itself!

Once upon a time, there was a girl named “Sora”. She loved to sing, but one day, something happened that made her scared to sing in front of others. As days passed, she forgot how to sing, and even how to laugh. Then, one day, she and her little brother “Daichi” stumbled upon a mysterious pond. At a pond called “Kagamiike”: Mirror Pond, Sora discovered a mystical butterfly glowing with aurora colors. As she watched it flutter freely, she suddenly felt a connection. The butterfly’s magical glow seemed to resonate with something deep inside her. Unable to resist, Sora reached out toward the butterfly. But she lost her balance and tumbled headfirst into the pond. Daichi, trying to help her, ended up falling in too... Beyond the surface of the Mirror Pond, a world of wonder and mystery awaited. As Sora and Daichi stared in amazement, a quirky girl named “Rococo” appeared before them. Before long, the three of them set off on an adventure through “The Land of NOMO”. Along the way, Sora begins to face the many feelings she had kept hidden deep within her heart. (Part of Panasonic Group Pavilion project for Expo 2025).

The Lost Room. A place where you can see what was lost, or maybe what will be lost to you in time. Existing in the innermost part of Chaldea, it is the boundary line between dream and reality where the light of the moon shines through. Produced by the Chaldea Summoning System, the room holds a small number of worthwhile benefits to enjoy.

The story is set in a town nestled in the mountains and centers on high school second-year student and aspiring musician Aoi Aioi, her older sister Akane Aioi, Akane's ex-boyfriend and struggling guitarist Shinnosuke Kanomura, and Shinno — who is actually Shinnosuke from 13 years ago after traveling from the past to the present. Aoi and Akane's parents passed away in an accident 13 years ago, and Akane gave up her ambition of going to Tokyo with Shinnosuke and decided to take care of Aoi. Since then, Aoi has felt indebted to her older sister. One day, she is invited to perform at a music festival as a session musician by a famous enka singer named Dankichi. At the same time, Shinnosuke returns to Aoi and Akane's town after a long time away. Then, Shinno mysteriously appears, and Aoi falls in love for the first time.