

Muichiro Tokito states that survival is the key difference that separates those that are Marked and those who fail to awaken it. Īlthough this could only be the case for Tanjiro Kamado, the Demon Slayer Mark has been shown to grow in length and size after repeatedly awakening it, which can possibly improve how much the Mark enhances the bearer's abilities.įor one to awaken the Mark, one of the criteria they have to meet is surviving extremely life-threatening conditions, specifically, a heart rate of over 200 beats per minute (BPM) and a body temperature of over 39° Celsius (102.2° Fahrenheit), conditions which can prove to be fatal in most cases. One special property of the Mark is that it is able to spread from one bearer to the other as if they were resonating which each other. Once awakened, the Mark can disappear after a period of time along with its effects, though it can be re-activated (as seen with Muichiro Tokito and Tanjiro Kamado) by meeting the same conditions or through training to maintain the 'Marked state' to prevent it from dissipating in the first place. The Mark can only be awakened under very specific conditions and grant special abilities while also enhancing pre-existing traits of the bearer. Each Demon Slayer possesses a unique pattern to their Mark which appear to be based on the Breathing Style they utilize.

During the Sengoku Era, the Golden Age of Demon Slayers, the progenitors of the first ever Breathing Styles all manifested markings on their bodies, which later came to be known as Demon Slayer Marks.ĭemon Slayer Marks are irregularities on the skin that resembles a birthmark and which commonly appears on the face or another visible location of the body of Demon Slayers that resemble the crests of demons.
