Samanta, a Mexican university student studying overseas, died in a massive earthquake while returning to her home country. During the last moments of her consciousness, she heard the voice of two girls, they offer her to be reborn in another world but she has to help them free their sister from the seal of an ancestral Hero, after agreeing she is reborn as an Alraune in the world of Zetcera. Now her life belongs to those two girls and she will have to fulfill her part of the deal if she wants to stay alive.