One common theme is redemption. Damon has a complex past, and in many fanfictions, his love for someone helps him seek redemption. His love is often seen as a catalyst for him to become a better person.
Forbidden love is also a big theme. Given Damon's nature as a vampire, his relationships are often against the norms, whether it's with a human or another supernatural being. This adds an element of danger and excitement to the stories.
The theme of sacrifice is prevalent as well. Damon might have to sacrifice his own desires or even his immortality for the sake of his love. It shows the depth of his feelings and makes the love story more intense and emotional.
If you want the clearest chapter reference, go to Chapter 8. Early on, The resentment that had barely calmed among the crowd surged back two...; later, the chapter leans on Some of them were relatives of the Jiang Family, who felt it improper to....
Chapter 841, "Isn't this Daniu?", is the clearest early answer because it turns Daniu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Zhao Lang took the photograph and glanced at it, chuckling, "It...
Chapter 912, "Identical Four Pillars of Destiny?!", is the clearest early answer because it turns Lin Manru's situation into a concrete plot event. A useful checkpoint is the way the scene starts with But the repeated blows made Wan Huixia's husband lose his confidence...
If you want the clearest chapter reference, go to Chapter 20. Early on, Several people turned their heads upon hearing the sound and saw three...; later, the chapter leans on She was clad in a long black dress, and the dull color did not hide her....
If you want the clearest chapter reference, go to Chapter 49. Early on, My phone!!!" Jiang Yan's roar echoed continuously through the mountains in...; later, the chapter leans on Watching helplessly as his latest-model phone was taken away by a....
If you want the clearest chapter reference, go to Chapter 67. Early on, I'm pissed," Jiang Yan cursed again, "These people are too much, aren't...; later, the chapter leans on They expect us to fend for ourselves even to sleep and to eat—I mean, at....
A practical answer is Chapter 51, because it turns the idea into a concrete scene. The chapter opens with Oh, okay." After uttering two syllables indifferently, Jiang Li bent down..., adds pressure through With this in mind, she looked up and scrutinized the worried faces in..., and ends on If I.
The best chapter pointer here is Chapter 40, "The National Museum Speaks!". It opens with [Jiang Li claims she copied this herself? and closes on The handsome guys on this show are so difficult to deal with..
A practical answer is Chapter 40, because it turns the idea into a concrete scene. The chapter opens with [Jiang Li claims she copied this herself?, adds pressure through Suddenly, someone typed in the live stream chat— "Oh my god, everyone,..., and ends on The handsome guys on this show are so.