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 could never tell him that I got 
married so I could continue killing!
ما كنت أبدًا لأستطيع إخباره 
!أنّني تزوّجت لأواصل العمل كقاتلة
Ich kann ihm ja nicht sagen,
dass ich geheiratet habe,
No puede saber que me casé
para seguir trabajando de asesina.
No puede saber que me he casado
para seguir trabajando de asesina.
Je ne peux pas avouer m’être mariée
pour continuer les assassinats.
Non posso certo dirgli che mi sono sposata 
per poter continuare a fare il sicario!
Jamais poderei contar que me casei
 para continuar matando em paz!
Да меня резать будут — не признаюсь,
что замуж вышла, чтобы дальше убивать!