πI have two novels to recommend to you. The first book was Carrying the Invincible Naruto System. The main character, Qin Tian, was a veteran fan of the movie. After becoming a slave of the Alien Continent, he used the Naruto System in his body to counterattack the enemy. The second book was " Naruto: Indestructible Golden Body ". The main character was a king with the power of metal. He came to the world of Naruto, which was filled with slaughter, and created his own legend by killing along the way. The protagonists of these two novels were cold, heartless, and invincible. I hope you like my recommendation.π