Looking at Korea today, it is hard to even imagine it being unified. The cultural and social differences between the Democratic People's Republic of Korea and the Republic of Korea makes it seem impossible for them to ever have a unified nation for the Korean Peninsula. However, there is a chance that, at the time of the separation of Korea, it could've been unified under a singular man. Cho Man-Sik.
Cho Man-Sik is not replaced with Kim Il-Sung.