It could be a rogue Sound ninja who has his own agenda. Maybe he wants to start a war between Konoha and the Sound Village to gain power in the chaos. He would see Naruto as a threat to his plans and try to eliminate him.
A powerful and corrupt Sound ninja elder could be the main antagonist. This elder might be jealous of the attention Naruto gets and wants to prove that the Sound ninjas are superior. He starts a series of attacks on Naruto and Konoha - related targets, which forces Naruto to take a stand and fight back. This elder could also be trying to take over the Sound Village completely and use it as a base for his own tyranny.
If you want the clearest chapter reference, go to Chapter 74. Early on, Having seen Jiang Li's ID before, he knew that this person named Shiguang...; later, the chapter leans on And he only knew the answer to that one question..
A practical answer is Chapter 91, because it turns the idea into a concrete scene. The chapter opens with When Jiang Li saw that he had been assigned a harrow, Qi Tianyu felt his..., adds pressure through Jiang Yan, you have to work hard this afternoon;
Look to Chapter 93 for the clearest answer. It begins with Jiang Li looked back and saw several aunties linking arms, walking up the..., keeps building through The leader was indeed the aunt to whom she had read fortunes this morning., and lands on I did the same when I was young, and when my dad.
Chapter 50 is the strongest chapter-level answer because it starts from [666, if good scores determine rankings, is Flash Change's production team... and follows through on What kind of heavenly being had such a sour temper and liked dancing....
A practical answer is Chapter 88, because it turns the idea into a concrete scene. The chapter opens with She wanted to refuse, but didn't have the courage to do so., adds pressure through Jiang Yan immediately stepped forward, "I have one point, quick, quick,..., and ends on Let's go," Jiang Li.
Look to Chapter 71 for the clearest answer. It begins with Shu Yan curled her lips with a hint of jealousy, "When can it be my turn..., keeps building through Who in this circle didn't know that Jiang Li had a thing for the..., and lands on Now they had to work on an empty stomach..
If you want the clearest chapter reference, go to Chapter 75. Early on, The ordinary people in the livestream were all stirred up by this scene.; later, the chapter leans on [Did you see that, did you see that?.
A practical answer is Chapter 129, because it turns the idea into a concrete scene. The chapter opens with When they saw that the live chat was full of praise for Jiang Li, those..., adds pressure through After a morning's labor, he hadn't planted more than the chicken had..., and ends on With.
A practical answer is Chapter 98, because it turns the idea into a concrete scene. The chapter opens with Jiang Li listened to the end and didn't have much of a reaction, only..., adds pressure through Several shirtless men were seen sitting around a table, playing cards and..., and ends on That's.
Chapter 73 is the strongest chapter-level answer because it starts from Director Sun, tongue-tied, finally managed to squeeze out a sentence,... and follows through on Despite Wen Jiaojiao's fiery temper, there were still many who were drawn....