In God Eater 2, Blood is a Fenrir special forces unit formed by Dr. Rachel Claudius. It originally consisted of only Julius Visconti and Romeo Leoni. Later on, though, their roster expands to include Ciel Alencon, Gilbert McLane, Nana Kazuki, and the Protagonist of God Eater 2. Those chosen to be admitted into Blood have the confirmed potential to awaken the "Power of Blood", and make use of Blood Arts. All Blood members are 3rd generation God Eaters. Also, Blood members differ from regular God Eaters in that their God Arcs respond normally when facing Invasive species such as the Marduk. Regular God Eaters will experience no response from their God Arcs when facing Invasive species alone. Members of Blood are given the P66 Bias Factor.