Kechizu

The aggressive form of the Rot Technique. When the Death Painting brothers' poisonous blood makes contact, Decay accelerates the decomposition, eating through living tissue faster than the body can heal. The rot spreads outward from the contact point, destroying flesh progressively while causing extreme pain. Cursed energy provides some resistance, sorcerers deteriorate slower than normal humans, but without treatment or removal of the contaminated tissue, the decay eventually becomes fatal.

The Death Painting brothers bleed poison. Their blood causes organic matter to decompose on contact, flesh rots, wounds worsen, and the decay spreads outward from the point of contamination. More blood means more rot. Sustained exposure is fatal. The technique transmits through blood contact, splashing, spraying, or smearing the poisonous blood onto a target initiates the decomposition. Cursed energy provides resistance but not immunity, meaning even sorcerers take progressive damage.