Yes. The crew filmed a reconstruction of arquebus shots at the Nagashino battlefield, where Oda Nobunaga, a reunifier of Japan, fought the Takeda clan. The host notes samurai were good shots with firearms, which goes against the clichés about them, since rifles were rather convenient and useful.

At the beginning, as a diplomatic thank you for their time, but not when they have nowhere to put it. The crew once forgot and planned to give chocolate caramel cakes at the end, and were told it is better to offer nothing than to give it late.

The host was told a gift at the start is the diplomatic gift thanking someone for welcoming you. Offered at the end, it looks like saying you have no money so here, take some cakes. That is why the crew learned it is better to offer nothing at all.

They originally planned to shoot in August but were strongly advised against it. They were even told the crew would refuse to take part because it would be too hot. Already in mid-June, during the rainy season, the host says climate change is giving a glimpse of an unpleasant summer.

He packed lace-up hiking shoes for walking, forgetting that in Japan you remove your shoes to enter places. With frequent entering and leaving of filming locations for nearly three weeks, this became a hassle. Cameraman Ken suggested new shoes, but at 46 he decided to keep his.

Extremely hot and humid, at the beginning of the rainy season. The day started under rain but improved, though it stayed very humid. Everyone sweated heavily, making it hard to keep a presentable t-shirt, and locals walked around with small fans and towels around their necks.

Kakegawa is in the middle of the island, halfway between Osaka and Tokyo. The area is valley-like, mountainous and covered with forest, leaving little free space, and tea crops cover the landscape the way vines do near Turin. He also learned Japan's population is almost twice France's.

On the third day the crew shot a sequence at the palace at the foot of Kakegawa's tall castle. The palace was the residence and administrative seat of the regional lord, called a daimyo. The crew also filmed historians and conservators in their museums and collections.