Ditto. South Korea’s military is not shabby. With US airpower, naval power and coordinated close air support, the North Korean army better win in 24 hours or else it will be caught in the open and destroyed. The big question is what will China do if the North Korean army is destroyed and retreating with the South Korean, Japan and US forces chasing it northward?
The NK Army knows it can't win, it's goal could only be to inflict as much damage as possible, which it could easily do. With so many individually bunkered artillery pieces within range of Seoul, that city (and any other within range) will be quickly reduced to rubble.