Crush

Visually impaired lead (ML vs. FL) whose sight is later restored. Both leads suffer some form of trauma and the ML is shut off from the world in a way. The main couple endure a long separation before finding their way back to each other.

Both are Chinese dramas with MLs having some blindness condition. In Crush, ML is blind. In My Unicorn girl, ML has Prosopagnosia, a face blindness condition. Both have sweet and beautiful romance.

Both dramas are romances and have a visually impaired ML.
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Both are sweet, lighthearted romance

Both MLs have mysterious identities whom FLs had admired for a long time that they won't find out until later

Peaceful, warm and beautiful cinematography set mainly in Spring/Summer

No annoying third wheels

Only setbacks are main leads' personal struggles

Main leads emotionally heal each other scars

MLs are rich and somewhat blind. In Crush, ML is blind. In Rich Man, ML has Prosopagnosia, a face blindness condition. 

The two drama share some similarities like the atmosphere in some episodes, the visually impaired mc, the slow burning love where it both hurts and soothes you.

Male lead has a disability and as a result harbors lots of insecurity that female lead heals. It has an emphasis on psychological concepts using it in a diegetic manner to assess/analyze the characters.

Sweet yet somewhat bitter romance with a twist that will catch you unaware. While one leans towards melo and the other is more of a comedy, Im certain though that if you liked watching one there are high chances that you will like the other.

Both have warm and bright female leads
Both have male leads with a visual impairment
Both are love stories that have an artistic foundation
Lovers of the Red sky the FL is a painter and in Crush ML is a songwriter
Both have leads that are known for good acting
If you like these elements in one check out the other!

Both lead roles(in a sad love story the girl)are blind
However sad love story is so sad that you wanna cry your eyes out?but both are sweet soft love story

Both are considered healing dramas as the main character struggles to get over their past and regrets through their blooming love for each other and matured.

Both dramas feature a colder, closed off ML who's life is interrupted by the FL who is warm and cheerful. Due to the ML's carelessness, he ends up pushing her away and the two separate for years. When they reunite, the ML must work to win the FL back again.

Similarities:

•second chance romance
•mature leads
•the coloring and feel of the filming
•great chemistry between leads

1. In both dramas the ML starts out with some sort of impairment. In Crush ML is blind and in Smile Code ML has alexithymia.
2. FL falls first in both dramas.
3. In both dramas the ML is insecure about their impairment that puts a strain on the relationship.

I just get the same feeling in Smile Code that I did with Crush.

These 2 dramas have similar aspects: both MLs are disabled, where ML is blind in Crush and ML is deaf in CYHMH. Both MLs went through childhood hardships and trauma. They seem cold on the outside yet they are actually very warm. FLs are very sweet.