If Harley Quinn realizes Bruce is Batman in a fanfic, it would be a huge turning point. She could approach Bruce in a different way, perhaps trying to understand his motives for being Batman. Harley might also feel a sense of betrayal, thinking that Bruce has been lying to her all this time. On the other hand, she could see it as an opportunity. She might think that she can now play a different role in Gotham's underworld, using her knowledge of Bruce's secret identity. This realization could also lead to some comical situations, like Harley trying to blackmail Bruce into doing something she wants, but in a very Harley - Quinn - esque way.
In many fanfics, Harley Quinn realizing Bruce is Batman can lead to some really interesting plot developments. Maybe she discovers it by accident, like seeing Bruce act in a way that's too similar to Batman's mannerisms. It could also be that she pieces it together from some clues that others have overlooked. This realization might make her re - evaluate her relationship with both Bruce and Batman, and it could create a whole new dynamic in the story.
Well, in a fanfic scenario where Harley Quinn realizes Bruce is Batman, it could start with her being suspicious. She's no fool, after all. Harley might notice small things like Bruce's physical fitness that seems a bit too good for a normal billionaire. Once she figures it out, she might try to use this knowledge to her advantage. Maybe she wants to get back at the Joker by teaming up with Batman (Bruce), or she could just be curious and want to mess with Bruce's double life.
The best chapter pointer here is Chapter 112, "The Strange "Team Spirit" Appears". It opens with These five people are supposed to be at odds. and closes on [Hahahaha why is the Princess starting to look disappointed?] [Help, even....
A practical answer is Chapter 122, because it turns the idea into a concrete scene. The chapter opens with Damn, are we supposed to find the points card in the mud?!" He had just..., adds pressure through It wasn't intentional!" Bullet screen: "[Qi Tianyu, you really need to be..., and ends on He.
Look to Chapter 122 for the clearest answer. It begins with Damn, are we supposed to find the points card in the mud?!" He had just..., keeps building through To salvage his image, he had deliberately dressed up before leaving the..., and lands on He had just steadied himself when Qi Tianyu.
The best chapter pointer here is Chapter 126, "The Production Team Actually Played Dirty on This?!". It opens with Wen Jiaojiao initially wanted to cause trouble. and closes on The trolls lurking in the live stream immediately seized the opportunity....
The best chapter pointer here is Chapter 121, "Jiang Li Gains 5 Points for His Meritorious Rescue!". It opens with Seeing that Wen Jiaojiao's condition had improved significantly, Director... and closes on You're supposed to be a man who conquers mountains!] Experienced and....
Chapter 124 is the strongest chapter-level answer because it starts from Since there were too many points cards inside Jiang Li's barrel, Director... and follows through on No need to repeat that number three times.] [Hang on, didn't Jiang Yan....
A practical answer is Chapter 158, because it turns the idea into a concrete scene. The chapter opens with Reluctantly, Jiang Yan had no choice but to forcibly join the group for..., adds pressure through Don't make me laugh, Jiang Li looks better even without makeup than she..., and ends on we're.
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.
If you want the clearest chapter reference, go to Chapter 122. Early on, Damn, are we supposed to find the points card in the mud?!" He had just...; later, the chapter leans on To salvage his image, he had deliberately dressed up before leaving the....
If you want the clearest chapter reference, go to Chapter 107. Early on, On the plane, when He Yun had taken off his mask and greeted her...; later, the chapter leans on She had also figured out his current predicament of being trapped by....