A Pair of Iron Fists, Overwhelming the Ninja World

After traveling through Naruto, Seiya gained the Boxing Champion achievement system. As long as you train, you can unlock the corresponding achievement cards. Tekken Garp, Saint Seiya, Sun Wukong... Since then, there has been a feared Taijutsu master in the ninja world. Uchiha Madara: In terms of taijutsu, we would like to call you the strongest in our class! Kai: I don't want to lose to Seiya when it comes to working hard. Immortal of Six Paths: The moon was penetrated by him! Seiya: When the power reaches its extreme, there is nothing that cannot be solved with one punch. If there is, then use two punches! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.