It is not strange that the Demon Lord's forces fear the Crimson Demons, the clan from which Megumin and Yunyun originate. Even if the Demon Lord's generals attack their village, the Crimson Demons can just easily brush them off with their supreme mastery of advanced and overpowered magic. When Yunyun receives a seemingly serious letter regarding a potential disaster coming to her hometown, she immediately informs Kazuma Satou and the rest of his party. After a series of wacky misunderstandings, it turns out to be a mere prank by her fellow demon who wants to be an author. Even so, Megumin becomes worried about her family and sets out toward the Crimson Demons' village with the gang. There, Kazuma and the others decide to sightsee the wonders of Megumin's birthplace. However, they soon come to realize that the nonsense threat they received might have been more than just a joke.
Japan, 1943, during World War II. Young Suzu leaves her village near Hiroshima to marry and live with her in-laws in Kure, a military harbor. Her creativity to overcome deprivation quickly makes her indispensable at home. Inhabited by an ancestral wisdom, Suzu impregnates the simple gestures of everyday life with poetry and beauty. The many hardships, the loss of loved ones, the frequent air raids of the enemy, nothing alters her enthusiasm…
While performing a puppet show at a nursery, the HappinessCharge Pretty Cures are surprised when one of the dolls starts talking. “Save our kingdom!” Tsumugi, the ballerina doll, pleads. The Pretty Cures accompany Tsumugi to the land of dolls, a girls’ paradise of cute stuffed animals, talking dolls, music and dance ruled by the noble Prince Zeke. But the kingdom is under attack by the forces of Black Fang, a mysterious man who wants to conquer the land for his own nefarious purposes. As sorrow spreads throughout the Kingdom of Dolls, the Pretty Cures come to the rescue.