The assassin, Eclipse, is living in a war torn world. After the death of the spy, Twilight, Ostania has gone to war with Westalis. It becomes bloodier with the deaths of the Thorn Princess, Yor Briar, and her younger brother, a member of the Ostanian Secret Police, Yuri Briar. With the help of the agency, Eclipse, also known as Anya, will go back in time to get adopted by Twilight and her adoptive mother, Yor. Maybe this time, her mother won't kill the necessary spy.