👉 Tachyon is a fictional character from the anime series "Demon Slayer" created by Masashi Kishimoto. He is a human-like demon who possesses the ability to transform into a tachyon, which is an extremely powerful and unstable form of light energy. Tachyon has been used as a weapon in numerous battles between demons and humans, including the battle against Demon Slayer's main antagonist, Kaguya. Tachyon is often depicted as having a human-like appearance, with his hair