““When you infiltrate the enemy line and come to a naturally fortified place, use the appropriate tools to gain entrance successfully. To get into an impregnable castle with a high stone wall, a high fence, a barrier, or a castle not naturally fortified but well constructed, or even one fortified with water such as a river, it is essential for you to prepare yourself with useful tools before you embark on a shinobi mission. In addition, you need to use the appropriate weapons when you invade the enemy's residence. This chapter shows how you create these tools.””
![“What a Shinobi Should Keep in Mind to Know the Enemy: It is essential for a shinobi monomi [covert scout] to speculate deeply about the way the enemy is. However, you should not report what is not reasonable enough to report. The commander in chief, troop commanders, or strategists make their…” quote by Yoshie Minami](https://sms4smile.com/quotes/img-quotes/b8b/yoshie-minami-57165_commander-in-chief_what-a-shinobi-should-keep-in-mind-to-kn_2390438.jpg)
