Definitely falls first, definitely kind / good:
- I Hear Your Voice
- I Need Romance 3
- In Time With You
- School 2017
- Weightlifting Fairy Kim Bok Joo (seems like a bit of jock at first but is the absolute sweetest)
- The Princess Wei Young
- Descendants of the Sun
- Dream High
- Sassy Go Go
- Witch's Romance
- Strongest Deliveryman
- Kill Me, Heal Me (he has multiple personalities, but is generally kind / good)
- Love O2O
- Sound of the Desert
- Live Up to Your Name / Deserving of the Name
Definitely falls first and is mostly / kind good, but maybe starts off not 100% nice:
- Go Ho's Starry Night (he's a tough boss but he pushes the FL to make her better)
- Something About 1% (he's a bit rude / domineering at first, but he changes because of the FL very quickly)
- Ms. Perfect (he's not an angel at first, but he becomes very sweet and supportive)
They both develop feelings for each other around the same time, more or less:
- Healer (ML is a bit of a loner but still kind / good)
- Love in the Moonlight (ML starts out aloof but very quickly becomes more friendly)
- Sungkyunkwan Scandal (he's a bit stiff but still kind / good)
- Bromance
- Splash Splash LOVE
- My Secret Romance (he's a bit spoiled / domineering, but not too bad)
- Pinocchio (this might belong in the first category, I can't remember ^^")