Katsumi Scarlet (勝美朱色, literally meaning Victorious Beauty of the Scarlet), alternatively referred to as Katsumi Shuiro, was an archaic and incredibly powerful Reikon Kyuuban. She was a child between The One and The Joker, the younger sister of Tenshi God-Kings Michael and Lucifer, and the older sister of Kenmeiotome Queen Yuu Hoshiko. Due to her descent, Katsumi was considered a Minor Tenjin, and was referred to as The Blood Moon by the Lesser Tenjin. Katsumi was a former resident of Tougenkyou until she decided to flee to the Real World in order to escape the control of her mother, The One. Upon making landfall in the Real World, Katsumi proceeded to create the Reikon Kyuuban and the Presas, both of whom she granted varying traits and abilities similar to her own respectively.