A demons tail

Rebecca all ways wanted to kill demons for her familys sake, they all were demon slayers, by when Rebecca goes on her fist ,mission, a lone, she meets this demon with a story, some how Rebecca has a choses to make when she falls in love with this demon, if she wants to join the demon race, or help this demon find a good side, or become one of them, When Rebecca's sister, Amy, finds out that her sister may make the wrong mistake she trys her best to help her out of the mess Rebecca has made, not just for her family, But, the world, can Amy save her sister in time before its to late, or will this love story have a tragic fate. Find out in , A devils tail.