The eighth installment in the series, following Suishinshi Masahide in his journey to understand what's going on in his mind and with the Touken Danshi that has influenced it, Mikazuki Munechika.
Tropes:
- Ambiguous Situation: This installment proposes more questions than it answers. How and why did Mikazuki pass on his memory glitch thing to Suishinshi? How did Mikazuki get a memory glitch in the first place? What memories did he give to the Gou swords? Just what is Mikazuki's mission and purpose? What is he trying to protect? Who the heck is that girl that Suishinshi and Kiyomaro saw? Where the heck is Mikazuki and why is he being so cryptic? And what does he need to be “saved” from?
- The Cameo: Mikazuki gets voice and projection cameos throughout the play rather than physically appearing.
- The Chosen Many: By the end of the play, Mikazuki has appointed Suishinshi Masahide and Minamoto Kiyomaro as bridges connecting the past and the future, and the Gou swords as bridges between humanity and Touken Danshi. It's unclear what these roles entail, however, as Mikazuki doesn't tell Suishinshi before he leaves, and we have yet to see the Touken Danshi do anything with them.
- Foreshadowing: For a later installment, but this play set up that not every historical “loser” that Mikazuki encounters agrees with his ideals and joins the Mononobe, which would become relevant in Michi no Oku, Hitotsu wa Chisu.
- The Leader: Suishinshi is the leader of the team in this play.
- Living Macguffin: Mikazuki Munechika serves as this for Suishinshi from this play onward, as he not only wants to find and help him, but also save him if possible and makes it his mission to do so.
- Mental Time Travel: Implied to be happening to Suishinshi throughout the play, although even that is unclear.
- Mind Fuck: The way the play is structured makes it extremely difficult to follow, let alone summarize.
- Oddball in the Series: The first with no clearly defined plot due to how much the story jumps all over the place, and the first to be a complete and utter Mind Fuck that left audiences more confused than anything else. It's also the first play to have eight swords.
- The Voice: Mikazuki appears as a voice in Suishinshi's head several times throughout the story, delivering information. Toward the end, he is projected onto a screen and speaks with Suishinshi and the other swords.
