Ninko-chan wa Ochikazuki ni Naritai

Ninko Shinobe, a descendant of the Kouga-school of ninjas, is a shy and kind-hearted high school girl. But what happens when she falls in love with a transfer student, Igasaki-kun, from the rival ninja village of Iga...? The start of an adolescent ninja romantic comedy!

(Source: Comic Action, translated)