I've watched up to the beginning of Episode 8, and I think it's become pretty clear who Tak's illegitimate son is. My guess is that it's Song Ha-neul, based on the way Tak treats him, how he said he sees Song like his own son, and how close they are and Song’s suspicious behavior.👀
The screenplay was very weak—this drama could easily have been wrapped up in 24 episodes.
What frustrated me the most was Qian Fei. Even after such a painful breakup caused by her ex-boyfriend's betrayal, she was still constantly involved in his problems. It became even more annoying when she started a new relationship but continued to concern herself with her ex's mother.
The most ridiculous part was when she called his mother just to check on her. Personally, I don't think that made any sense. After being harshly criticized by her ex for interfering, she wasn't even upset. Then, when he later asked her to visit his mother in the hospital, despite having humiliated and scolded her before, she happily agreed without hesitation. 😑
Qian Fei's excessive kindness was honestly unbearable. She never set clear boundaries between her own life and her ex-boyfriend's, which allowed him to keep taking advantage of her.
To make matters worse, near the end she rejected Li Yi Fei because she felt guilty and he was away on a business trip. That decision only made the drama feel even more ridiculous and poorly written.
I think Jing Jing is the kind of girl who's obsessed with getting attention and is honestly really annoying.
Normally, if you offer to lend your friend money so she can pay back her ex and she says no, you respect her decision and stay out of it.
But Jing Jing selfishly went to Qian Fei's workplace again to make a scene and demand the money, and she even brought up the cheating all over again. She didn't stop to think that it was Qian Fei's workplace too, and that she was basically embarrassing him in front of everyone.
Instead of respecting her friend's choices, it feels like she's just looking for drama and conflict.
Having a friend like that would drive me crazy, and I definitely wouldn't want to be in Qian Fei's shoes.
If I were Jing Jing, I'd tell myself that Qian Fei knows better than anyone how to deal with his ex and their problems.
Honestly, instead of interfering in Qian Fei's life, Jing Jing should've paid more attention to her own boyfriend. Maybe then she would've noticed that his behavior was changing.
She would've been better off spending her time working on her own relationship instead of trying to "fix" problems her friend never asked her to solve.
K-Drama 
there is a lot of character
you have a good voice
What frustrated me the most was Qian Fei. Even after such a painful breakup caused by her ex-boyfriend's betrayal, she was still constantly involved in his problems. It became even more annoying when she started a new relationship but continued to concern herself with her ex's mother.
The most ridiculous part was when she called his mother just to check on her. Personally, I don't think that made any sense. After being harshly criticized by her ex for interfering, she wasn't even upset. Then, when he later asked her to visit his mother in the hospital, despite having humiliated and scolded her before, she happily agreed without hesitation. 😑
Qian Fei's excessive kindness was honestly unbearable. She never set clear boundaries between her own life and her ex-boyfriend's, which allowed him to keep taking advantage of her.
To make matters worse, near the end she rejected Li Yi Fei because she felt guilty and he was away on a business trip. That decision only made the drama feel even more ridiculous and poorly written.
Overall, I'd give this drama a generous 3/10.
Normally, if you offer to lend your friend money so she can pay back her ex and she says no, you respect her decision and stay out of it.
But Jing Jing selfishly went to Qian Fei's workplace again to make a scene and demand the money, and she even brought up the cheating all over again. She didn't stop to think that it was Qian Fei's workplace too, and that she was basically embarrassing him in front of everyone.
Instead of respecting her friend's choices, it feels like she's just looking for drama and conflict.
Having a friend like that would drive me crazy, and I definitely wouldn't want to be in Qian Fei's shoes.
If I were Jing Jing, I'd tell myself that Qian Fei knows better than anyone how to deal with his ex and their problems.
Honestly, instead of interfering in Qian Fei's life, Jing Jing should've paid more attention to her own boyfriend. Maybe then she would've noticed that his behavior was changing.
She would've been better off spending her time working on her own relationship instead of trying to "fix" problems her friend never asked her to solve.