Julian Nakaura, a priest of the Society of Jesus, was one of four young ambassadors sent to Rome by the Jesuits in 1582, as proof that Japan had converted to Christianity. Fifty years after the mission, which so fascinated European royalty, Julian was forced again to prove his faith, only this time before a Shogun, who wanted to force him to abandon his religion. Julian resists, as does Miguel Chijiwa, a fellow at the embassy to Rome, who become a martyr. Betrayed by Cristóvão Ferreira, who cannot bear the torture, Julian suffers an inglorious death ... or maybe not. All the while, a woman wants to discover her past...