Impossible Love

A day before turning 18, her family takes Sapphire Myler on a trip to her favourite place in the world, Japan. On the boat to get there, a mysterious voice sings. She is drawn to the water, falls over the boat, into the cold ocean. She is given the chance to be a Siren, drowning sailors that pass her sea, so that she doesn't drown. She accepts. Now, she is forbidden to go into the human world, because if she speaks to them, they will drown themselves underwater, for her voice has changed to be a Siren's. She is also immune to age, and cannot die unless shot. What happens when she meets a girl who she immediately falls in love with.