Naruto: I Relied on My Proficiency to Reach the Ceiling

Traveling through the world of Naruto, Uchiha Masaru awakens the proficiency system and possesses the ultimate Sharingan that is immune to backlash. He studied under Metkai and practiced the Eight Gates Dunjia, honed his eye power day and night, and quietly pursued the genius. Foretelling that the night of annihilation was coming, he secretly planned and eavesdropped on the clan's plot. He met Uchiha Itachi and made a seven-day appointment. Before the storm of the ninja world came, he relied on his continuously stacked proficiency to climb towards the ceiling of the ninja world step by step.