Obviously, Sonic and Eggman are the key characters. Sonic is the kidnapped one and Eggman is the kidnapper. But also, Tails could be a very important character. Since he is Sonic's best friend, he would likely be the first to try and rescue Sonic. Knuckles might also be involved. He could help in the search or be the muscle during the rescue mission.
In this type of fanfiction, Sonic and Eggman are central. Sonic is the victim of the kidnapping. Eggman is the villain who does the kidnapping. Amy could also be a key character. She has a strong affection for Sonic and would be determined to save him. And then there's Shadow. He might get involved either because he has his own sense of justice or because he wants to prove himself better than Sonic. He could play a crucial role in the rescue or in Sonic's escape.
The main characters would be Sonic and Eggman for sure. Sonic is the one in trouble. Eggman is the cause of the trouble. But other characters like Cream and Cheese could be important too. Cream might be the one who discovers Sonic's kidnapping first. Cheese could use his small size to get into places the others can't to gather information. And then there's Rouge. She could be interested in what Eggman is up to and either help or hinder the rescue depending on her own motives.
Chapter 165 is the strongest chapter-level answer because it starts from How come everyone else got a solid six points, and he ended up with just... and follows through on Various explosive Weibos sprang up like mushrooms after the rain, and....
Look to Chapter 171 for the clearest answer. It begins with The afternoon rain stopped and started again, making the air even more..., keeps building through A few people simply moved the dining table into the small courtyard,..., and lands on They weren't any big shots;
If you want the clearest chapter reference, go to Chapter 130. Early on, This task, the first one, should have been his in the bag.; later, the chapter leans on However, just as he was about to get out of the water and take a short....
Chapter 190 is the strongest chapter-level answer because it starts from Several people who didn't understand fell silent. and follows through on Because he saw the pack of cigarettes pinched between Jiang Li's fingers..
A practical answer is Chapter 111, because it turns the idea into a concrete scene. The chapter opens with The main room's door was pushed open just a crack, and the head of the..., adds pressure through Alright, those who think they're the king can step forward!" As soon as he..., and ends on.
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 180 for the clearest answer. It begins with In the end, everyone received gifts that were completely opposite to what..., keeps building through Shu Yan wanted plastic films, but she ended up with a box of facial masks., and lands on she simply didn't want to associate with the.
The best chapter pointer here is Chapter 120, "Jiang Li Can Actually Do Acupuncture?!". It opens with Facing the sudden and somewhat strange request from Jiang Li, Director Sun... and closes on Drink this." Wen Jiaojiao looked at the half cup of thick substance:....
A practical answer is Chapter 131, because it turns the idea into a concrete scene. The chapter opens with Just around mealtime, Director Sun came over pushing his small food cart., adds pressure through Just as they tried to emulate Jiang Li's example and make themselves a..., and ends on Hungry.
A practical answer is Chapter 147, because it turns the idea into a concrete scene. The chapter opens with Xiao Xueyi nodded in agreement after listening., adds pressure through She even took the initiative to call?, and ends on Only Jiang Li glanced back at Director Sun, and then took out her.