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!
I know more about Yuri than 
anyone else, so leave this to me!
،أنا أعرف يوري أكثر من أيّ أحد آخر
!لذلك دع الأمر لي
Niemand kennt Yuri besser als ich,
also vertrau mir!
Déjamelo a mí. Soy quien mejor
conoce a mi hermano.
Déjamelo a mí. Soy quien mejor
conoce a mi hermano.
Je sais comment m’y prendre avec lui,
fais-moi confiance.
Conosco Yuri meglio di chiunque altro, 
lascia fare a me.
Conheço o Yuri melhor do que
ninguém, então deixe comigo!
Я Юрия лучше всех на свете знаю —
и всё для нас устрою!