Nichirin Swords (日 (にち) 輪 (りん) 刀 (とう) , Nichirin Tō?, lit. Sun Blade) are special blades used by Demon Slayers made specifically for the purpose of slaying demons. Nichirin Swords (among other Nichirin bladed weapons) are the main weapons used by Demon Slayers in the Demon Slayer Corps in order to kill demons. They are forged with Scarlet Crimson Iron Sand (猩 (しょう) 猩 (じょう) 緋 (ひ) 砂 (さ) 鐵 (てつ) , Shōjōhi Satetsu?) and Scarlet Ore (猩 (しょう) 猩 (じょう) 緋 (ひ) 鑛 (こう) 石 (せき) , Shōjōhi Kōseki?), both of whic