A kid writes fake diary entries to mess with his mom and watches reality bend to match every lie. When a rain of pigs actually falls and nobody bats an eye, the joke stops being on him and starts being on everyone else. The absurdity isn't forced or explained, it just happens, and the movie treats impossibility like a weather report.
Noriyasu is just a regular third-grader until the moment his mother discovers his secret diary. Desperate to impress her, he starts filling the pages with increasingly ridiculous stories: a massive serpent coiling through the bathroom, pencils served for dinner, livestock falling from the sky. The problem is that these fabrications keep coming true, and somehow everyone around him accepts them without question as if pigs raining down on the neighborhood is completely ordinary. Sensing an opportunity, Noriyasu pivots to journalism, crafting wild newspaper stories he knows are total fiction. His fake articles spread through town and gain actual traction, spiraling into stranger and stranger consequences. What starts as a kid's desperate bid for attention becomes a series of increasingly absurd events that blur the line between imagination and reality, leaving Noriyasu scrambling to control the chaos he's accidentally created. The film balances surreal comedy with genuine confusion, treating the impossible with deadpan acceptance while watching one kid slowly realize that his words have more power than he ever intended.