1819화: 교장이 꿈에서 쫓기는 걸 본 걸 조사하라고 닌자들에게 명령한다

1819

The Headmaster dreams a lot of ninjas are after him and believing it will become true, he order the nintamas to investigate. In charge of the security of the Academy and in order to defend against intruders, 1st year Ha class follows Shouzaemon's suggestion to use passwords. (Source: Nintama Rantarou Wiki)