Someone has stolen all the wages for all the employees at a major company. The culprit was apprehended through a discarded cigarette, but as the whereabouts of the missing money is still unknown, a reward is being offered for anyone who finds it. Kyousuke happens upon a coded message that seems to indicate the hiding place. Leaving Takuboku behind since he's still cut ties with him, Kyousuke sets out with young Hirai to decipher the note.
Seems a very persistent 
detective went all over Tokyo
يبدو أنّ متحرّياً مثابراً جدّاً زار كلّ أرجاء طوكيو
Anscheinend ist ein sehr motivierter Polizist
durch Tōkyō gestreift,
Un detective buscó por todo Tokio
una tienda donde lo vendieran.
Un detective buscó por todo Tokio
una tienda donde lo vendieran.
Un inspecteur opiniâtre
a fait le tour des tabacs de Tokyo
Sembra che un tenace agente investigativo
abbia girato tutta Tōkyō chiedendo
Parece que um detetive
teimoso revistou Tóquio inteira
Очень настойчивый следователь 
исходил весь Токио