What if everything you knew—every memory, every moment, every dream—was about to vanish? And no matter how hard you fought, you couldn’t change your fate?

Izumi never imagined that a single day could hold the weight of an entire lifetime. As her world unravels, she is faced with a choice: cling to the past or embrace the unknown. With the enigmatic Balsos by her side, she embarks on a journey through a fleeting existence—one filled with quiet beauty, unspoken regrets, and the haunting question of what it truly means to live.

In the span of a day, can a soul find its peace? Or does time slip away too soon?

And the answer to a single question: What was the happiest day of your life?