最後の日輪刀(にちりんとう)

3D Model

“Just remember, when it comes to katanas, it’s Nichirin or nothing.” - Some dude from swordsmith village, probably

From the series “Kimetsu no Yaiba”: https://www.viz.com/shonenjump/chapters/demon-slayer-kimetsu-no-yaiba

https://mangaplus.shueisha.co.jp/titles/100009