Any drama with similar couple like in Still 17?

I love both leads a lot. The female lead is cheerful and always bring bright energy with everyone or wherever she goes. I also love how male lead always help fl and how he softens up after meets fl. Any drama with couple similar to them?

+ if male lead is arrogant

+ slow burn 

Thank you very much!

I guess any normal CEO drama?

Boss and me

Mr. honesty

Lucky's first love

Once we get married

Perfect and casual (though ML is not ceo)

 hayaka:

1% of Something,   especially if ML being arrogant is a plus.  Too arrogant IMO, and somewhat physically rough and deceptive with her, which is why I rated it down.  But it's generally a sweet story

People been telling me to watch this. Maybe I should give it a try, thanks a lot!