Complex sentence: In the film, the protagonist sorceresses Lina Inverse and Naga the Serpent reunite to go on a vacation to the magical island of Mipross, but soon find that things there are not quite what they seem and there might be a mighty evil force behind it.
Split into simpler sentences: In the film, the protagonist sorceresses Lina Inverse and Naga the Serpent reunite to go on a vacation to the magical island of Mipross. Soon, however, Lina and Naga find that things on Mipross are not quite what they seem and there might be a mighty evil force behind it.