Could you recommend Korean or Japanese enemies to lovers dramas with little to no comedy?

I'm looking for intense, emotional romance dramas from Korea or Japan where the characters begin as rivals and fall in love, and where the focus stays dramatic rather than comedic.

I like:

Mr. Sunshine

Secret

The Trunk

My Mister (don't fall in love, but it fits)

Perfect Crime

That Winter, the Wind Blows

When the Phone Rings (minus the terrible ending)

The Smile Has left Your Eyes