Based on Ekaterina Kurae's chapter 16 from the manga, and episode 10.5 of the anime.

The story takes place in the second half of the 19th century, as Japanese culture gains popularity in the West. A young Japanese girl, Yune, accompanies a French traveler, Oscar, on his journey back to France, and offers to help at the family's ironwork shop in Paris. Oscar's nephew and shop-owner Claude reluctantly accepts to take care of Yune, and we learn how those two, who have so little in common, get to understand each other and live together in the Paris of the 1800s.

According to the official website, episode 4.5 of of Ikoku Meiro no Croisée will be included in the third volume of the Blu-ray & DVD. The episode streamed for a limited time on ShowTime, the official online streaming site for Ikoku Meiro no Croisée.

Depiction of Japan's economy, based on Shoutarou Ishinomori's epynomous manga.