1 Favorite novel canceled noo

Twin sister one loved one hated the princess the Heir to the thrown had 1 brother but he was not the real son he was adopted but even though she had duty's she love one a demon man they had twins the queen was mad and behead the demon man the princess was in tears she was married of and became the new queen had her kid at 19 and had another son at age 30 the new heir to thrown the son love both sister demon and angel but some did not the demon was out cast her sister fond love the demon loved her sister lover and was jealous and cursed her sister her sister lover was mad and want to kill the demon the sister love cured breatridk and killed the demon but demon turned back alive and I AM SORRY THIS MANGA HAS BEEN DELETED FOR THE FOLLOWING REASONS it has to much murder and laws broken I am sorry read a different manga but I have seen you read the whole this the demon dies and the sisters lover and the angel get together