Falling into Your Smile

Though this one is related to e-sports instead of idols. but have the same kinda plot. you'll love it for sure

One Smile is Very Alluring is the movie version of Love O2O (and I actually liked the movie version a little better). Both dramas are about gaming and both involve the plot of a guy that is amazing at games falling in love with a girl that's also really good at games. Both also have a kind of cold, aloof, and popular male lead who always protects the female lead. Highly recommend watching the other if you liked one of the two :)

the characters in both show are young people fighting with their dreams,sooo excited and so cool!and i also like these actors!

How ML & FL don’t let outer conflicts get in the way of their relationship + trust in each other.

The chemistry between FL and ML is electrifying. I am sure you will love this one if you liked falling into your smile.

The male lead speaks less, acts mysterious, and ohh damn, his eyes, the way he looks at the female lead. Also, the FL is not a pushover; she is ambitious and courageous.

it's been a year since FIYS.
While Love like Galaxy seems a farfetched recommendation, i recognised Sun Kai (Xiao Pang) actor playing as a supporting actor to Leo Wu.
Equally funny

Similar concept of a woman in a male dominated field. Both shows have great group character dynamics.

They both have game thing in them although in different sense in FIYS have professional gamers and lucky first love have company that develops a game
Teasing between CP is very similar and they way they react in presence of 2nd leads is also very similar if u liked FIYS u will like this one for sure

If you're looking for another mature relationship post-college, with an understanding and deep relationship and no stupid misunderstandings, Sweet Teeth is great. This drama isn't so popular, but it is similar to FIYS in the way that both are fluffy, and will have you giggling at the screen at many times.