One of the heirs to the Aska Kingdom. He lives a stressful life, hiding from the Sweepers and the Council after being marked for erasure. He runs part of the Organization called Sclera, an entire world hidden in time and space where he trains young Reapers to become operatives of the Organization.
Mayuri cannot seem to relax. He is always stressed, always fearful that something will go wrong. He suffers PTSD from an age old events that he won't speak of.