Makoto Nakazono has perceived grim reapers since early childhood, entities appearing shortly before a person's death to escort souls. Knowing others wouldn't believe him and convinced he cannot alter fate, he adhered to a strict policy of non-interference. He consciously avoids acknowledging the reapers, maintaining an outward facade of normalcy. This passive stance shifts when a reaper at his high school directly confronts him, questioning his lack of interference. During this encounter, Makoto learns the reaper's target is his best friend, Hazuki Horiuchi. This revelation forces him to confront his resignation, sparking doubt about the futility of action and the possibility of delaying or preventing Hazuki's death. Driven by his bond with Hazuki, Makoto decides to act. He ventures into other dimensions, facing scythe-wielding reapers in an attempt to protect her, navigating surreal and dangerous landscapes that mark a stark departure from his previous avoidance. The story concludes with an ambiguous outcome regarding Hazuki's ultimate fate.