People enjoy these fanfics because it allows for exploring different character dynamics. Harry and Hermione are both complex characters. When Harry flirts with Hermione, it can show new sides of their personalities, like Harry's more confident and playful side and Hermione's flustered or intrigued side. It also gives fans a chance to imagine what could have been if their relationship had taken a different path in the wizarding world.
Some people like these fanfics because it offers a different take on their relationship. In the original books, their relationship is mainly platonic, so seeing Harry flirt with Hermione is a fresh and exciting idea.
Chapter 701, "Let Bai Lu and Chen'an Terminate the Contract", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Miss Jiang, that move of yours was totally awesome!" Shao Changqing...
If you want the clearest chapter reference, go to Chapter 2. Early on, On the top floor of the Financial Building, a gathering of dark clouds...; later, the chapter leans on How dare Jiang Li hang up his phone?.
Chapter 448, "Has Jiang Li Gone Crazy?!", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event.
Chapter 833, "She’s Also a Quick Transmigrator?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from [It's the Yu Family and that Fengshui Family, the Li Family, who...
Chapter 789, "Son Toad", is the clearest early answer because it turns Father Shang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Shang Shaojing had given her an envelope containing a piece of paper...
Chapter 494, "Unrequited Love Turns Into Enmity", is the clearest early answer because it turns President Shang's situation into a concrete plot event.
Chapter 714, "I'm Using Voice Input", is the clearest early answer because it turns Shen Lan's situation into a concrete plot event. It opens with Jiang Li looked at Jiang Mingyu, who appeared deeply hurt, and... and closes on The person was sending her baffling messages and even called to....
Chapter 611, "The House She Built is No Ordinary House!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li didn't care about the dissenting voices at all; she rolled...
Chapter 597, "Uncontrollable Things Still Happened", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Gu Yu's disappearance couldn't be related to the secret of this...
Chapter 496, "Hot Pot Tonight!", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event.