Machigatteita no wa Ore Dattan da.

In the aftermath of a devastating tragedy, a young man named Furuya finds himself consumed by grief and guilt. His girlfriend, Sara, has died in what was ruled an accident, leaving him to navigate the suffocating silence of her absence. Unable to move forward, he retreats into his own mind, endlessly replaying the events that led to her sudden passing and searching for answers that offer no comfort. As Furuya reflects on their time together and the circumstances surrounding the fatal incident, his contemplation evolves into a quiet, agonizing reckoning with his own role in the tragedy. The one-shot delves deeply into his internal struggle, portraying the heavy burden of survivor's guilt and the painful realization that the truth behind Sara's accidental death may be far more personal than he initially allowed himself to believe.