Sanada Yukimura is building a castle to defend Oosaka during the Summer War. But his plan has a flaw: there's a hole in the ground that forms a secret entrance!
I don't quite get how the Sanadamaru works.
.لا أفهم تمامًا نظام السانادامارو
Die Konstruktion des
Sanada Marus ist mir ein Rätsel.
No tengo ni idea
de cómo es Sanadamaru.
No tengo ni idea
de cómo es Sanadamaru.
Je comprends pas bien
comment c’est construit.
Non capisco granché 
di com'è costruito il Sanada-maru.
Não sei bem como o Sanadamaru funciona.