With a ninja tools exam approaching, Ittoki is desperate to find a way to pass. Meanwhile, in an effort to fish for intel on Koga, Tokisada pays a visit to Saiga village.
No weapon, fingerprints, footprints, or articles found at the 
scene or in the vicinity 

Sole piece of evidence: Lacerations from murder weapon are 
characteristic of Iga ninja sword wounds.
...لهذا، المشتبه به الأهمّ في القسم الأول هو
Darum ist für uns,
die erste Einheit der Ninjasicherheit,
El principal sospechoso
que investigaremos
El principal sospechoso
que investigaremos
Ainsi, la première division
du bureau NIN
Per questa ragione
la prima divisione della CSN
Sem armas, digitais, pegadas ou itens achados na cena do crime
ou nas cercanias.

Única evidência são as lacerações que são características das
espadas dos ninjas de Iga.
Соответственно, из первого
подразделения нам интересней всего...