Ichihime Ninja

Synopsis

With an unloving father who manages love hotels, an idiotic ninja "protector" named Jin who poses as her math teacher, and a history of getting into fist-fights, Ichihime's high school life isn't exactly easy. But when another girl at the exclusive high school sets her eyes on Jin, Ichihime might be the one in need of rescuing. (Source: Which Scanlations)