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!
He's a spy from the West. 
Apparently, a master of disguise.
.إنّه جاسوس من الغرب. يبدو أنّه خبير في التّنكّر
Ein Spion des Westens
und ein begnadeter Verkleidungskünstler.
Un espía de Westalis.
Un maestro del disfraz.
Un espía de Westalis.
Maestro del disfraz.
Un espion de l’Ouest,
maître dans l’art du déguisement.
Una spia dell'Ovest. 
Pare sia un maestro dei travestimenti.
Ele é um espião do Oeste.
 Dizem que é um mestre dos disfarces.
Шпион из Весталиса.
Большой мастер перевоплощений.