An «Integrity Knight» (整合騎士, Seigō Kishi?), known as an Integrator (インテグレータ, Integurēta?) system-wise, is a dragon knight and the main military force of the Axiom Church. Integrity Knights were born through the «Synthesis Ritual», having the memories of their past lives suppressed and are forced to be unconditionally loyal to Quinella at all times through a «Piety Module». Originally, the purpose of the Integrity Knights was to protect Quinella against Cardinal, preserve the integrity of the Human Empire, and to maintain the Church's rule over the world.