This episode features Japanese swords. We look at Chikakage, a sword of the 16th-century warlord Akechi Mitsuhide, which was discovered in 2019, and ponder what he might have thought about this weapon. We delve into the fascinating craftsmanship that goes into forging the ultimate sword. The Hon'ami Family has been polishing and sharpening swords since the Muromachi period (1336-1573). The current head of the family, who has been designated as one of Japan's Living Treasures, shows us what this craft involves. An accomplished sword drawer shows off his swordsmanship and how the forms of swords have evolved over the ages. Also featured is a sword dating from the Heian period (794-1185). Its scabbard, featuring the oldest extant feline motif in Japan, is a national treasure. A fictional swordsman and computer game character Mikazuki Munechika, who has taken his name from another well-known weapon, makes his appearance.