Kunishige’s wartime six are forged after two years of failed Datenseki research. The chapters through 131’s listing still show the kiln, the eyes, Chiaki as the reason the work stays open, and tamahagane coming out of a collapsed furnace. They do not name the first finished Enchanted Blade. This page is a warning label, not a leak.
What the rooms are doing
MangaDex, Reddit, and the Mystiqora-style tapes argue Magatsumi, Tobimune, Kumeyuri, or Subaru’s still-unnamed sword. Some want a new bearer. The chapters have not confirmed any of that. We will not. When Jump prints a title it belongs on the catalog and the blade index. Until then the first blade is work. See smelting, chapter 130, marked theories.