Nobunaga had been sending the daimyo of Yamato, Matsunaga Hisahide various letters, but hasn’t heard back from him, so he orders Chidori to infiltrate Yamato. However, it was said to be impossible to infiltrate Hisahide’s Tamonyama Castle.
Tamonyama Castle, is famous for being 
impossible to siege or sneak into.
قلعة تامونياما، مشهورةٌ بمناعتها ضد الحصار أو التسلل
das Schloss Tamonyama,
ist als uneinnehmbar bekannt.
il castello di Tamonyama, è famosa
per essere inespugnabile e impenetrabile.
é famoso por ser imune a cercos e a invasões.