The feared ninja Gabimaru, considered unbeatable, awaits in prison the arrival of an executioner capable of killing him. In him, the desire to end it all is now stronger than the will to fight, but the proposal of the executioner Asaemon will awaken in him the fury of the past: the possibility of returning to live with his wife, the only light in his life, if he agrees to recover the secret of eternal life for the shogun! Between demonic monsters, betrayals and explosive action, the exciting shonen that is leaving everyone speechless continues!