The Big Picture
- In Demon Slayer, the Nichirin blades used by Demon Slayer Corps members are made from Scarlet Crimson Iron Sand and Scarlet Crimson Ore collected from mountains that are bathed in sunlight all year round.
- Each color of the Nichirin blades represents a different element or inspiration, as well as the personality and power of the demon slayer wielding it.
- The different colors of the Nichirin blades have distinct characteristics and are associated with unique Breathing techniques.