Famous at school as a ninja geek, Recca always likes a good-natured tussle with his friends, and even with his father. But he finds himself in an awkward situation — on the day he pledges undying ninja allegiance to cute classmate Yanagi Sakoshita, a mysterious older woman appears. Is she good or evil? And what’s the deal with tomboy Fuko Kirisawa? She’s got the power of wind at her command. Does she want to blast him away or just kiss him?