Naruto himself is often involved. Since Gear 4 is a power - up concept, it makes sense for Naruto, with his never - give - up attitude and strong chakra reserves, to be the one to either use or face Gear 4. He could potentially learn to incorporate it into his Rasengan techniques.
Sasuke is also a popular character in such fanfictions. Given his intelligence and combat skills, his interaction with Gear 4, whether it's his own discovery or facing someone else using it, can create really interesting storylines. He might analyze it and come up with unique strategies to either counter or utilize it for his own ends.
Another character could be Kakashi. As a highly experienced and intelligent ninja, he could play a role in guiding younger ninjas in understanding and using Gear 4. He might also be involved in battles where Gear 4 is a crucial factor, using his Sharingan and wide range of jutsus to adapt to the situation.
The best chapter pointer here is Chapter 133, "Teacher Du, Please Reconsider the Termination of the Contract". It opens with Watching Jiang Li and the others finish their meal and tidy up the table,... and closes on It was only after she shared the concept and purpose of the show with him....
A practical answer is Chapter 144, because it turns the idea into a concrete scene. The chapter opens with Ordinary people would have been at a loss in this situation by now., adds pressure through You people must be reincarnated from starving ghosts—such fast eaters., and ends on He then noticed.
The best chapter pointer here is Chapter 145, "Director Sun, You Haven't Paid for the Meal Yet". It opens with Chixia Village was located in a remote area with a backward economy, so... and closes on What about it?" "That's unfortunate," said Jiang Li indifferently..
Look to Chapter 107 for the clearest answer. It begins with On the plane, when He Yun had taken off his mask and greeted her..., keeps building through She had also figured out his current predicament of being trapped by..., and lands on Although Su Yinwan's recent change in temperament had been.
If you want the clearest chapter reference, go to Chapter 105. Early on, But this did not elicit any sympathy from the woman on the phone; on the...; later, the chapter leans on Do you know why you haven't been getting good roles or making money these....
Chapter 140 is the strongest chapter-level answer because it starts from In the evening, the setting sun was like blood, dyeing the entire earth a... and follows through on I was just joking, just joking." Seeing that Wen Jiaojiao had no intention....
If you want the clearest chapter reference, go to Chapter 101. Early on, Jiang Li walked over to the slope where the two had fallen down.; later, the chapter leans on Below the small hill was nothing other than a large patch of sludge..
A practical answer is Chapter 84, because it turns the idea into a concrete scene. The chapter opens with When the villagers tasted his curry beef one by one, their faces revealed..., adds pressure through [Pfft, and she's teaching others how to cook, isn't it just scrambled eggs..., and ends on.
Chapter 148 is the strongest chapter-level answer because it starts from Exiting the cottage, Director Sun picked up the phone. and follows through on Just as Jiang Li put down her chopsticks, she received the call from Mr..
Chapter 138 is the strongest chapter-level answer because it starts from Is there such a good deal? and follows through on Could it be that the poison also had a side effect of making a person more....