The story takes place in Belo Horizonte, Minas Gerais. The young Emi, 16 years old, has been pursued since she was a child by an organization contrary to the O.S., but she only found out when she meets a boy (Guilherme), her guardian, he is a member of a secret organization, the O.S. Emi will have to pass tests of Speed, Strength, Endurance, Flexibility and Agility ... and one last, a final struggle to fit into this secret society full of mysteries...