Mayari Alverno is an assassin in her world of blood and death. Even though longed for a change she couldn't break the shackles of s*****y that bind her to her ruthless father. Until, a powerful sorceress from another world, named Helen, came to her aid and offered her an apprenticeship that she couldn't turn over. Mayari now lives with the sorceress in the world that she haven't dwell, a world of magic and mystery that never failed to amuse her. But peace is a fragile thing that can always be broken easily. Even though in a new world and a new life, troubles are always looking for Mayari that includes her being eyed by the dark forces of magic because of her outstanding ability, and involuntarily being knotted by the Royal Family's problem, risking her life a couple of times to death. Will she regain peace in end? or be thrown in hell to repent for her sins?