Naruto: I'm an Uchiha, Konoha's Ultimate Workaholic

Misheng transmigrates to Konohagakure in the world of Naruto and becomes a member of the Uchiha clan. This is a world ruled by bloodline. The Hokage's child becomes Hokage, while the scapegoat's child becomes a scapegoat. Thinking about the "weasel's" future extermination of his clan makes Misheng feel "so angry I could shake and freeze." Fortunately, he awakens the "Grind King System." By pushing himself through "training," "study," and "combat," he earns "grinding experience" that can be used to improve ninjutsu, taijutsu, physique, bloodline limits, and more, with rewards along the way. Upgrade taijutsu to obtain Konoha-Style Taijutsu, the first and second gates of the Eight Gates... all the way to the Eighth Gate; Upgrade physique to obtain the Uzumaki physique, Shikotsumyaku physique, Crystal Release physique... and the Sage Body; Upgrade Fire Release to obtain the Phoenix Flower Jutsu... Great Fire Annihilation and Dragon Flame Song Technique; Upgrade the Sharingan through one, two, and three tomoe, the Mangekyo, the Eternal Mangekyō Sharingan, and the Rinnegan. Many years later. Staring at the imposing figure before him, Madara Uchiha was astonished. His face filled with shock, he asked, "Only the power of Indra and Asura can draw out the power of the Rinnegan. Uchiha Misheng, how do you possess the Rinnegan?" Uchiha Misheng gave a cold laugh. "I owe everything I've achieved to my relentless grinding." "Deep Blue, allocate my points!"