Despite joining the Armed Detective Agency, Nakajima lacks convection that he'd be of any use. Just as he's about to bid the agency farewell, a bomber takes over the agency with one of the agency employees as his hostage...!
First, when you leave the room, 
make sure you close the door.
.أوّلًا، احرص على إغلاق الباب عندما تغادر الغرفة
Geh erst mal aus
deinem Zimmer,
En primer lugar,
procura cerrar la puerta cuando salgas.
En primer lugar,
procura cerrar la puerta cuando salgas.
D’abord,
ferme bien à clé en sortant…
Per prima cosa, dopo essere uscito, 
chiudi per bene la porta...
Primeiramente, quando 
sair, feche bem a porta!
Как выйдешь из комнаты,
накрепко запри дверь.