- "The world functions on survival of the fittest. The strong eat the weak, and the weak just exist to reinforce the idea of "strength". So, it's a matter of time, for when I eat all of you."
- —Mu to the Zero Floor Prison's staff
World's Most Dangerous Creature (世界何より危険物, Sekai Naniyori Kiken Seibutsu)
|Other Tattoos/Unusual Features||
Canine fanged mask
Zero Floor Prison Staff
|Weaponry and Armor||
Mu (無, Zero), also known by his given name Shishi (獅子, Lion), is Inmate Number 000, and the only inmate in Zero Floor Prison, a prison constructed solely to house him from the outside word and combat specifically him. He was arrested for many murders, being a sort of serial killer who targeted young people, burning or freezing them using his ability to control temperature, which proved troublesome against authorities, managing to escape and fight back for years, before finally been captured, and eventually placed in the Zero Floor Prison, built specifically to hold him.
EquipmentEditDemon Mask: Handcuffs:
Powers & AbilitiesEdit
- As one could guess, Mu's name means "Zero", referring to his inmate number being "000", as well as his ability to control temperature.