Naruto himself is often a main character in such fanfiction as he is the protagonist of the original series and has a knack for learning new jutsus.
Sasuke could also be a main character in 'naruto expansion jutsu fanfiction'. Since he is always striving to gain more power, he might be interested in the expansion jutsu and how it can enhance his combat abilities.
Another character that could be involved is Kakashi. He is a skilled ninja and a mentor. He might be teaching the expansion jutsu to the younger ninjas or using it himself in some fan - created scenarios. Also, he could be helping the characters to control and master the jutsu, as he has a lot of knowledge about different jutsus.
Look to Chapter 130 for the clearest answer. It begins with This task, the first one, should have been his in the bag., keeps building through However, just as he was about to get out of the water and take a short..., and lands on Normally, the best planting distance for sweet potato seedlings is.
If you want the clearest chapter reference, go to Chapter 116. Early on, But before the audience in the live room had time to continue brewing the...; later, the chapter leans on Jiang Yan quickly entered the room, and a few minutes later, he dashed out....
If you want the clearest chapter reference, go to Chapter 107. Early on, On the plane, when He Yun had taken off his mask and greeted her...; later, the chapter leans on She had also figured out his current predicament of being trapped by....
Chapter 144 is the strongest chapter-level answer because it starts from Ordinary people would have been at a loss in this situation by now. and follows through on He then noticed the hand—fair and slender, not at all like an auntie's..
Look to Chapter 168 for the clearest answer. It begins with Su Yinwan spoke those words with a pitiable expression, then lowered her..., keeps building through The next second, a crisp notification sound rang in her Divine Sense,..., and lands on The Gu Family had strict family education;
If you want the clearest chapter reference, go to Chapter 116. Early on, But before the audience in the live room had time to continue brewing the...; later, the chapter leans on Jiang Yan quickly entered the room, and a few minutes later, he dashed out....
A practical answer is Chapter 126, because it turns the idea into a concrete scene. The chapter opens with Wen Jiaojiao initially wanted to cause trouble., adds pressure through Turns out their Sister Li is not only a walking encyclopedia cum mysticism..., and ends on The trolls lurking in the.
Look to Chapter 141 for the clearest answer. It begins with It had happened in the afternoon when Aunt Ying's son and daughter heard..., keeps building through They went straight to Jiang Li's door and insisted on thanking her., and lands on Jiang Li couldn't help but laugh and cry..
A practical answer is Chapter 106, because it turns the idea into a concrete scene. The chapter opens with Thinking of this, He Yun nodded with a hint of anticipation., adds pressure through The Jiang Family fell from grace, shattered into pieces, and became an..., and ends on Jiang Li's fingers.
Chapter 173 is the strongest chapter-level answer because it starts from Jiang Li finally rose from her seat. and follows through on Yet Miss Su went out of her way to ask me not to be angry..