Naruto: Trying to become a Hidden Boss

"When GOD closes a door in life, they also open several others. But nobody further explained that those doors are way more hidden and harder to go through" For Shiva, reincarnating into Naruto's world was both exciting as well as worrying. As a civilian born, he has a steep journey ahead of him if he wants to become strong enough to affect the canon timeline. Hence, he decides to lay-low and work hard like a hidden boss in order to have a chance of survival. Join Shiva as he grows up to become one of the best Shinobi the world has ever produced. ================================================================ WARNING: I plan to write many chapters and hence the story will be slow-paced. DISCLAIMER: I don't own Naruto or other characters in this fan fiction except for the original characters that I create.