File:Katana Muramasa.JPG - Wikipedia

Muramasa: The Demon Blade (Video Game 2009) - IMDb

Muramasa (Zanpakutō spirit)

Muramasa Blade, The Demonic Paradise Wiki

The curse of Muramasa JAPANESE SWORD LEGENDS

Masamune and Muramasa: The Secret History of Japan's Two Greatest Katana Swordmakers (Part 2)

Sengo Muramasa, Wiki

Muramasa - Mabinogi World Wiki

THE MURAMASA KEI 村正派 - NIHONTO

NETCOS Game Fate/Grand Order:FGO,Senji Muramasa Cosplay Weapon Sword,Stainless Steel,Alterego,Red

And to anyone saying Muramasa isn't strong, when you find it in pre-hardmode it can take care of a group of enemies pretty quickly. : r/Terraria