The latest weapons development fitting for New Year’s eve and other crazy times: a fire katana that can spread fire. Strangely enough there are instructions for building it online (which I won’t link to). For all manga lovers and budo influencers: if you try this indoors, like shown in the first few seconds of the movie, your apartment will soon be on fire too*: don’t try this (at home)!
*Note: Noto could also get hot on your hands.