I don't have a solid reason, but the beginning and setting of What Comes After Love reminds me of Doona!
And both dramas give me that calm vibe and willpower to watch these dramas.

Both dramas offer the same calm and romantic winter vibe.
When I started watching the first love it reminded me of 'when the weather is fine',
especially when playing past story of them.

CLOY is similar to Love Andante because both are about love story between north and south Koreans.