2144화: 모로이즈미 소난몬이 도이 선생에게 복수하기 위해 닌자츠 아카데미에 도착한다.

2144

To get back at Doi-sensei for his crushing defeat, Tasogaredoki ninja Moroizumi Sonnamon has come to the Ninjutsu Academy. However, at the Headmaster's sudden bright idea, the nintama are sent out to deliver letters to different castles. (Source: Nintama Rantarou Wiki)