Armed with the power to control flame, Recca Hanabishi finds himself in an awkward situation when a mysterious older woman pops into his life one day. Is she good? Is she evil? What exactly does she want with the young ninja firecracker? Becoming a ninja is just a childhood dream for16-year-old Recca, until a fateful encounter reveals he has inherited ninja powers, including the ability to wield fire! As Recca learns to master the ancient ways of his ancestors, he is drawn to protect a mysterious girl named Yanagi...
Finally, Recca gets to meet the eighth Karyu...his dad! Now, a mission that ended in tragedy more than 400 years ago puts some serious family-honor pressure on Recca to keep Yanagi safe from Koran Mori. Meanwhile, Yanagi's memory is almost wiped clean. And even a full-on assault from Recca and his pals might not be enough to crush Koran's army of monsters, all created from his own devious DNA!