Play: 平安時代 (Heian jidai) | 日本刀 (nihontō) | 名刀 (meitō) 大典太光世 (Ōdenta Mitsuyo)
平安時代 (Heian jidai) | 日本刀 (nihontō) | 名刀 (meitō) 大典太光世 (Ōdenta Mitsuyo) · 日本刀解説付き大全集 (Nihontō kaisetsu-tsuki daizenshū) | 名刀の宴 (Meitō no utage)
8:00 · 11 December 2021
The story of the Ōdenta Mitsuyo, told from the Japanese Wikipedia entry. The title reads the sword as Ōtenta, the other reading of its name.