The Sweet Girl (2020)

Both dramas have a FL who is posing as another girl which causes her to become involved with the ML. Both MLs seem cold at first but become very devoted and loving with the FL.

Both dramas have a similar feel, with a FL who is lying to the ML and ends up forced to live or work with him while hiding her secrets. Both couples are an enemies to lovers relationship, with the FL initially disliking/afraid of the ML who seems cold and harsh at first.

-also has sewing, fabrics and design elements (all about fashion and textile industry)
-BOY is like the more modern version, not set in the olden times
-main lead CPS are super shippable
-both guys are a bit nerdy, but TSG is a little bit more on the alpha side while in BOY he's a cute and humorous but very loving

-both set in the olden times period where sewing and textile industry is just becoming a thing
-has elements of sewing, designing and clothing industry
-TCOL is a bit more focused on revenge/romance aspect of the plot

Their contents are similar it's about fashion design. Also, there is love hate relationship between main couples at first.

>In both drama FL have hidden identities
>Strong female leads both of them are bandits can fight the bad guys
>Both are lighthearted rom-coms

The cuteness and chaotic disaster vibe that Jiu Er & Yin Ran has reminds me very much of the dynamic of Chen Qian Qian & Han Shuo!
Also, the male leads falls for the female leads first.
Also, both female leads are adorable and clever!

set in the same era. similar clothes and acting. the main leads are the same in the way that they are opposite and attract each other. making the other think about their and also making them better people.