In Demon Slayer, we have been told that bright red nichirin blades like Yoriichi Tsugikuni are the strongest in Demon Slayer. However, that isn't the whole truth. Today, we will discuss the secret behind Black Demon Slayer Swords and why they are the strongest. Follow Me on TikTok ►https://www.tiktok.com/@yaseenthatguy Follow Me on Twitter ►https://twitter.com/yaseenthatguy Follow Me on Instagram ►https://instagram.com/yaseenthatguy