Ostania's counterintelligence agency and national security bureau conducts spy hunts and keeps surveillance on its citizens to maintain peace within the country. They are also called the Secret Police and are feared. Yor's younger brother Yuri actually belongs to the Secret Police and is hunting down spies while keeping this a secret from Yor and others around him. One day, he suddenly shows up at the Forger residence. The Forgers, who are full of secrets, and Yuri, who has a secret identity, come face to face!
Everyone has a side they 
don't show anyone else.
.لكلّ امرئ جانب لا يظهره لأيّ أحد آخر
Alle Menschen haben Seiten,
die sie anderen nicht zeigen können.
Las personas tienen un yo interior
que nunca muestran a nadie.
Las personas tienen un yo interior
que nunca muestran a nadie.
Nous possédons tous
une face cachée
Tutte le persone possiedono un lato di sé
che non mostrano mai a nessuno.
Todos têm um lado que
não mostram a ninguém.
У всех людей есть стороны,
которые они хотят скрыть.