(This article is free of charge) Haneda Kiyoshi, a commoner boy in Konoha, has mediocre talent and thin chakra. He is the weakest person in the ninja school who is ridiculed by everyone. On the eve of graduation, the all-round proficiency system unexpectedly awakens. From then on, any skill can be infinitely improved with repeated practice and actual practice.
He practiced farm work in the fields to refine his physical skills, fought against the rebel ninja to break through the bottleneck of his strength, practiced basic clone techniques to a proficient level, and used his civilian body to challenge the Chunin-level defectors. He did not rely on blood inheritance limits or family background, but only relied on the proficiency system to counterattack all the way. He went from being a preparatory ninja who no one cared about to participating in the Chuunin exams, rising against the odds in a field filled with geniuses, and embarking on a path to the top of the ninja as a commoner.