Other titles :
紅蓮紀, Creo the Crimson Crises, Gurenki - Creo the Crimson Crises, Gurenki -Creo the Crimson Crises-
From Horobi no Michi: Suou is just a normal highschool student. One night, she dreams about a red-haired demon girl... who shows up the next day in the middle of class and "claims" her as her property. On hiatus.