As a 400-year-old teenage ninja, Recca Hanabishi has recently vowed to protect the life of a pretty classmate named Yanagi Sakoshita. With the power of flame at his command, the hottest shinobi is not shy about roasting a punk (or two) over a roasting fire. But now, a battle-weary Recca finds himself grappling with someone known as “The Invincible One.” As he looks down the barrel of the Evil God Cannon, our hero begins to wonder: How do you defeat an indestructible enemy with an arsenal of human souls at his command?