Here are all the dramas I can recommend :
Missing you -Kdrama- (man walking with a cane)
Crossfire -Cdrama- (wheelchair user)
Dele -Jdrama- (wheelchair user)
Oh my Venus -Kdrama- (not really disable but has leg problems)
Doctor John -Kdrama- (has a sickness that troubles his daily life)
Remembering Lichuan -Cdrama- (walks with a cane)
Where stars Land -Kdrama- (he has one arm and one leg paralyzed)
The Bequeathed -Kdrama- (walks with a cane)
I have a lot more series and films with disabled men to recommend but they aren't from Asia.
So here are their names in case you are interrested :
Series : CB Strike -England- (leg prosthesis), Doc -Italia- (leg prosthesis), Caïn -France- (wheelchair user), Agent Carter -USA- (walks with a cane), Blind justice -USA- (blind), The Alienist -USA- (right arm crippled), Ironside 2013 -USA- (wheelchair user), Person of Interet -USA- (has difficulty to walk), Daredevil -USA- (blind), House -USA- (walks with a cane).
Films : Sur les chemins noirs -France- (has truggles to walk and a lot of pain), Avatar -USA- (wheelchair user), At the End of the Tunnel -Brezil- (wheelchair user), Perfect World 2018 -Jdrama- (wheelchair user), Guzaarish -India- (wheelchair user), Morgan 2012 -USA- (wheelchair user), Qui Pro Quo -USA- (wheelchair user), Gattaca -USA- (wheelchair user), In Harmony -France- (wheelchair user).
Well, I think that's already enough ^^ Enjoy it