Sergeant Honma Eiji has been assigned to the Shanghai military police. 
Not long after assuming his new post, he is summoned by Captain Oikawa Masayuki. 
Oikawa orders Honma to conduct an internal investigation and uncover an enemy agent 
who's infiltrated their ranks. As he explains the mission, they hear an explosion...
Last month, when I returned to Japan,
،عندما عدتُ لليابان الشّهر الماضي
Als ich letzten Monat
wieder in Japan war,
El mes pasado, cuando regresé a Japón, 
salí a beber con otro excompañero.
El mes pasado, cuando regresé a Japón, 
salí a beber con otro excompañero.
Le mois dernier, au Japon,
Il mese scorso, al mio ritorno in Giappone,
No mês passado, quando voltei para o Japão,