Upon waking in an unfamiliar body belonging to Yukari Sanada, Ahiro Fujisawa confronts the startling truth of her recent passing. As her soul intermittently swaps places with Sanada's, Ahiro finds herself navigating the complexities of their shared existence. Along the way, she reconnects with Kai Tsubaki, a friend from her previous life whose presence becomes a comforting constant amidst uncertainty.