Shinobi means a certain being only purpose in life is to fight. Here in Shinobi, two clans against each fight each other as ordered by the superior. Leader of both clans is in love with each other and were planning to get married but since it was ordered that they fight, they have no choice but to fight with their clans even if it means killing the one he/she love. A love story but filled with supernatural human powers and martial arts.