Major Serena Kiriaga, a hero for the Europan Alliance has proven her loyalty time and time again and is given praise for being the Angel of Blood. However she is just one of many soldiers fighting in the Seraphim Rebellions, a nine year conflict against Magic influenced beings who attempted to destroy humanity. With the war dragging on day by day and year by year, it seems that the blood filled conflict could last eternity. However, the Major is given an assignment that goes above her own chain of command that could possibly end the War itself. An assassination mission to kill the Leader of the Seraph. A mission that if failed could mean the extinction of humanity