An anime version manga about an Assassin who falls in love with a princess who t

An anime version manga about an Assassin who falls in love with a princess who tells the legacy of the Queens and the Assassin who is at the height of Satoru Gojo with medium long white hair that has bangs and the black suit with a kimono and who is handsome, flexible, fast with green eyes, elegant, serious, respected, nice with the princess and the princess who is at the height of Tertin from Scissor Seven with long black and blue hair with blue eyes with a long and wide black dress with dark blue and who is happy, would be great, funny, intelligent, sad but elegant and that she is with the Assassin in a forest in the middle of the night and the forest that is surrounded by Assassins who want to kill them both and the forest that is dark with snow falling and that the Assassins have red eyes and that they look like demons and the princess and the Assassin who are fighting with the demonic Assassins and the princess who says this is your end and who is fighting with the Assassins and the Assassin is killing the demons that are attacking the princess and there is blood around and a big strong demon is about to hit the princess but the Assassin kills the demon