War of Faith

both are republican era drama
Both are propaganda for the initiation of the communist party in chaotic times
Both have the main lead, a young man who is fighting for his dreams and his patriotism

Both shows are set in 20th century, with Mr. Sunshine being set majorly in years 1902-1910 and WOF is set in 1930s, and both showcase a complex time period with Japanese occupation and changing times.

Another major similarity is strong female characters, and the female leads are particularly similar. Both female leads belong to a high status and rich family but both of them are secretly fighting for their nation. In both shows, the female leads have the strongest faith.

Republican era drama ..................................................................................................................................................................................................