Hermione Granger is often a key character. Since she's already very good at transfiguration in the original books, it's easy to imagine her as a transfiguration prodigy or someone mentoring one. Harry Potter himself might also be a focus, as he has a natural talent for magic and could be portrayed as having a special aptitude for transfiguration.
McGonagall is a common character in such fanfictions. As the transfiguration teacher, she can play a crucial role in guiding the prodigy. Also, characters like Draco Malfoy might be included, perhaps as a rival to the transfiguration prodigy. His family's pride in pure - blood magic could fuel his envy or admiration for the prodigy's skills.
Neville Longbottom could be a character in these fanfictions. He has his own growth in the original series, and in fanfiction, he could be friends with or be inspired by the transfiguration prodigy. Additionally, some original characters created by the fanfiction authors may also be part of the story, adding new dynamics to the transfiguration - centered plot.
A practical answer is Chapter 28, because it turns the idea into a concrete scene. The chapter opens with The next evening, Jiang Yan drove home seething with rage., adds pressure through Fuck, who's there, standing in the middle of the night scaring the shit..., and ends on Lili then kicked his.
Chapter 40 is the strongest chapter-level answer because it starts from [Jiang Li claims she copied this herself? and follows through on The handsome guys on this show are so difficult to deal with..
A practical answer is Chapter 61, because it turns the idea into a concrete scene. The chapter opens with Hahahaha, oh my god, Jiang Li's mouth is even more venomous., adds pressure through The man's expression darkened for a moment., and ends on A cold shower is pretty normal, right?.
Chapter 923, "Eight-legged essay?!", is the clearest early answer because it turns Take Miss Rong's situation into a concrete plot event.
Chapter 871, "Emergency Incident", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. The chapter turns that into something concrete by moving from He really didn't expect such a coincidental event to happen to him.
Chapter 12 is the strongest chapter-level answer because it starts from Qin?" Jiang Li called out twice, and only then did Mrs. and follows through on The glass shattered on the floor with a crash, attracting the attention of....
Chapter 890, "Why didn’t anyone inform me?!", is the clearest early answer because it turns Jiang Mingchuan's situation into a concrete plot event.
Chapter 8 is the strongest chapter-level answer because it starts from The resentment that had barely calmed among the crowd surged back two... and follows through on Other people with a handsome and charming appearance often try to conceal....
If you want the clearest chapter reference, go to Chapter 38. Early on, Jiang Li had also observed the girl who had just entered.; later, the chapter leans on Before arriving, she had briefly reviewed the profiles of the other three....