Kirk here with something for sword fans and/or history buffs and/or gamers. First here are my sources:
https://kumanichi.com/articles/767778 https://ja.wikipedia.org/wiki/歌仙兼定 https://www.gematsu.com/2021/11/touken-ranbu-warriors-kasen-kanesada-trailer
The lower half of the image I’m sharing shows a Japanese sword, owned and used by members of the Hosokawa family, that is currently on display at the Prefectural Art Museum. It’s called Kasen Kanesada. Apparently, the Hosokawa’s were not always nice guys. The Kumanichi and Wikipedia articles say that HOSOKAWA Tadaoki used the sword on 6 (or perhaps 36) retainers (today that would be “employees”) with whom he was dissatisfied. The Wikipedia article says something about the policies or projects of the domain “not progressing” well enough. Sounds to me like Tadaoki was a bad boss. “Tadaoki, you can take this job and . . . ahhhhhh . . . gasp.” At any rate, Kasen (歌仙) refers to some kind of poetry that comes in sets of 6 (or 36?) – hence it’s a euphemistic way of referring to the number of people that Tadaoki used the sword on. Kanasada is the name of the guy who made the sword in the Muromachi Period (sometime between 1336 to 1573 – I don’t have a more exact date).
Now, the thing is that this sword is quite popular with young folks – despite its grusome history. That’s because Kasen Kanesada is also a character in a game. It would seem that this pop culture notoriety has something to do with the Prefectural Art Museum declaring that they may limit the numbers who may enter to gaze at the blade: https://www.pref.kumamoto.jp/site/museum/147503.html