Release the Hellhounds! Sakuya, Leon and Goto: the Kerberos organization Omega Team has a single mission: to protect the mysterious 'psi' element, the secret substance that drives the development of the entire country. But while they may be an invincible elite squad, their greatest enemy hides behind closed doors. As tension builds within the group, Sakuya's troubled past reveals a hidden aspect of her personality that will change everything... and could put the whole world on the path to destruction!