A short mini movie meant to celebrate the ending of Fire Emblem Heroes's Book Four and tease Book 5.

Fire Emblem Heroes: Book II - Chibi Playhouse The Ice Kingdom of Nifl is currently at war with the Flame Kingdom of Múspell, ruled by its tyrannical king Surtr. Equipped with the legendary lance Leiptr and aided by Askr's summoner, Fjorm—Nifl's second princess—aims to defeat Surtr to put an end to the conflict. Nonetheless, no matter how serious this tale is, the heroes who reenact it provide a comical and adorable twist! With Fjorm and the Summoner performing their ultimate battle against Surtr on stage, the events of the clash are retold, bringing joy and laughter to the audience. Fire Emblem Heroes: Holiday - Chibi Playhouse After once again failing to defeat Alfonse and the Summoner, Veronica—a young princess of the Emblian Empire—is left completely dispirited. To add to her misery, she loses one of her most precious tomes on the battlefield, leaving it to her loyal companion Xander to try cheering her up. Although his efforts initially end in failure, a mysterious staff he brought reveals to have magical powers, prompting Veronica to devise a scheme. She attempts another attack on Alphonse and the Summoner, using the power of the staff and her enormous Christmas spirit! Fire Emblem Heroes: Book III - Chibi Playhouse

Modern man Cheng Yan unexpectedly dies and his soul travels to a medieval European-style otherworldly continent, becoming Roland, the fourth prince of the Kingdom of Graycastle. This playboy prince saves the witch Anna at an execution scene and is shocked to discover that magic really exists in this medieval-style otherworld. When Anna, as a witch, displays her magical skills, Roland realizes that magic can replace some modern technology, so he formulates a "great development of magical industry" plan. Thus, in an era where everyone hates witches, the independent Roland begins to recruit witches, using their magic to transform Border Town and improve the lives of himself and the locals. In addition to using magic to develop industry, Roland also introduces modern business ideas to Border Town. Under Roland's leadership, people manufacture firearms, and Roland gains public support. As the number of witches in Roland's camp increases, the magical industry continues to improve. At the same time, Roland will face battles with great families and other princes and princesses. As his territory expands, Roland successfully creates a harmonious coexistence between witches and ordinary people, gradually bringing the western territory of Graycastle and even the entire kingdom under his rule, and slowly uncovering the secrets of the devil race and the Witch Empire.

Episode 12.5 of Osomatsu-san 4th Season.