Dramas where both ML and FL take there time to fall in love?

So I started watching The Love Equations but I just couldn´t stand that the Male Lead was interested in the Female Lead from the very first episode so I putted on my On Hold List.

I´m searching for dramas where both Male Lead and Female Lead take there time to fall in love. 

1 day ago I watched About Is Love and I freaking LOVED that drama! All the couples ended up in the last episodes and it was SO wholesome!

• So either they both take there time to fall in love (Slow Burn Romance)
• Or, if one is interested quite early in the drama, I want him to be oblivious about his own love. So that he is confused about his actions all the time. (But they HAVE to play it down. So if they fall and on each other the´re more like: Can you get up? NO BLUSHING, NO STUTTER!!)

Other important things:

• Male Lead falls in love first (or both fall at the same time)
• Smart, badass, cold, calm, tough, independent, strong, sassy FL and ML
• No weak/dumb Female Lead
• No medical drama
• (Depends) Not too many episodes
• Happy End

Bonuses: 

• VERY oblivious Female Lead when it comes to the Male Lead or love in general
• From Hate to Love/From Friends to Lovers
• Bickering couple
• Multiple couples
• Young characters/Young cast (20-35)
• No big Age Gap especially Older Woman/Younger Man  
• No Harem/Love Triangle/Second Lead
• They come together in the very last episode

Examples how I like it:

• My First First Love 
• Birth of a Beauty 
• Wednesday 3:30 PM 
• About Is Love 
• My ID is Gangnam Beauty 
• Perfect Imperfection 
• Love the Way You Are 
• Queen of Mystery 
• Graceful Family 
• Master Devil Do Not Kiss Me 
• Catch the Ghost 

How I don´t want it:

• Playful Kiss
• What's Wrong with Secretary Kim 
• Cinderella and the Four Knights 
• Oh My Venus
• Queen of the Ring 
• A Love So Beautiful 
• Cheese in the Trap 
• Forest 
• Healer 
• Lucky's First Love 
• My Secret Romance 
• Que Sera, Sera 
• The Heirs 
• While You Were Sleeping 
• I could go on because literally every second drama gets on my nerves...

I know it is a bit long, but I´m really picky when it comes to dramas... I hope I can get recommendations.

Any country is welcome!

I hope I could make my point clear. 

 AH :

• The Story of Ming Lan - Long because for the first third of the drama the leads' romantic storylines involve other people.
• Story of Yanxi Palace - Also long. Don't be fooled by the first male character to show genuine romantic interest in the FL. The ML doesn't start to fall for the FL until well into the drama.
• Secret
• Because This is My First Life
• Dream High
• Marriage Contract - The ending is slightly open ended so it's about as happy as it could be in the circumstances of a terminal illness drama, but because of what we expect will happen later it's pretty bittersweet.
• When a Snail Falls in Love

Thank you so much for your recommendations!