In the eerie silence left by the absence of VISIONs, Rei Sturluson, a high schooler, found herself engulfed in an unexpected and unshakable loneliness. These supernatural beings, which had disrupted her life in the past, were now conspicuously absent, leaving a void that seemed impossible to fill.

However, just when Rei thought she was moving on from that void, a mysterious boy, who unlike others, was a VISION, entered her life. His enigmatic presence brought with it a haunting question: he sought to discover the exact moment of his demise. This encounter marked the beginning of an intriguing and worldly journey, unraveling mysteries that extended beyond the realm of normalcy and common sense, leading Rei into a realm of the unknown and the known.