Saal 2045 tak aate-aate duniya bilkul badal chuki hai aur ab insanon ka gana gana sakht mana hai. Ab koi bhi insaan music nahi banata, balki “MiucS” naam ki ek app hai jo saare gaane khud produce karti hai. Seria Aiba ek aam ladki hai, par ek din jab wo apne doston ke sath bahar hoti hai, toh use kisi insaan ke gane ki awaaz sunayi deti hai—jo ki is daur mein namumkin hai.
Us awaaz ka peecha karte hue Seria ka samna ek ajeeb saaye se hota hai jo koi mamooli bhoot nahi, balki ek “Great Ghost” hai. Yahan se Seria ki zindagi ek khatarnak mod leti hai jahan uska palla TERA naam ki ek psychic organization aur “Possession Requiem” naam ke ek raazmayi gaane se padta hai. Wo ek aisi duniya ke raaz janne lagti hai jinhone insani music ko mita diya tha. Ye kahani hai Seria ke badalte hue halat ki aur us raste ki jo use khud ek bhoot banne ki taraf le ja raha hai.
