Soft Ninpo SOS

One day , Todoroki Kaita is suddenly brought to Momoike no Sato as a candidate for his son-in-law. It is said that if he masters ninjutsu there, he will marry Princess Asuka and become a lord, but if he fails, he will be married to Yurine and used as a labor force. Kaita's ninjutsu training for his future begins.