like the title says. for example, a love so beautiful or lost romance. open to any country!

I felt like Bad Buddy fit this dynamic. 

(personally did not like this drama but some people really enjoyed it) I remember someone categorized Lighter & Princess as this – ML falls first (if I remember correctly) and FL falls harder

Heart Protection  (It may not look like the other falls harder, but once we understand what the ML did for the FL, we see he's been deeply in love)

You're My Glory (FL falls first, since childhood, but ML falls harder - does a lot in his possibilities)

As Long as the Sky Has The Sun (FL falls first, ML falls harder)

My Forever Sunshine - FL falls first, ML falls harder

A Poem a Day - With the main couple the FL falls first but I wouldn't say the ML falls "harder" BUT the FL fell for the SML first and he fell WAYYY harder later.

An Ancient Love Song - I can't tell you anything about this without spoiling the drama. It's very good though and a very interesting example of this trope

Crush - FL fell first, ML fell harder

You Are My Destiny - FL fall first, ML falls harder in all of the versions.