Tokyo Shadows

For many years, mankind have been trying to cover up the presence of Shadows - humans born with an extreme amount of functional cells that not only allows them to regenerate faster than the average human, but also gives them supernatural abilities.
Even now, the public remains ignorant of their existence, but two groups formed by these beings and their war over a key to a deadly weapon may involve the future of the entire world, as well as high school student, Kawaguichi Akiko, the new recruit of one of the Shadow organisations. However, when Akiko joins the organisation, she cannot help but feel like she has a much deeper connection with the organisation then she initially thought and that... everything is more than it meets the eye.