North Korea is full of shit. In terms of war North Korea cannot win even if they have Nuclear Missiles you know why? Its all about combinations.
1. Air Superiority.
North Korea already loss in a battle of air superiority they do not have 5th generation multirole fighter. They might have a couple of Migs and SU but no one can beat the mighty might of F-35, F-22 and the air bully F-16 which South Korea already have it. So North Korea compensates by installing lots of SAMs, S300, S-400 but it is already proven the probability rate of Russian Anti-Air are trash. Check Ukraine war.
2. Ground Battle Arena
Does North Korea has latest MBT? No shit what they have is a cardboard copy of T-72 with full of revisions. They installed lots of modifications such as grenade launchers and atgms. Jesus, you do not need those shits like atgms and grenade launcher because they are slow moving AFPDS is enough [tungsten rod]. What about their armor? it is just covered in ERA. The South Korea uses Black Panther K2 since they are in a partnership of US Military so expect the tank of South Korea is similar to Abrams which uses Depleted Uranium Armor, Depleted Uranium Sabot Round and great maneuverability. In terms of Artillery, idk about North Korea but South Korea has HIMARS, ATACMS, K9 thunder similar to US paladin.
3. Ground Troops
North korean ground troops numbers are just for propaganda but in reality they are suffering malnourishment, they lack proper military equipment and the maintenance is out of question. [Check ukraine war NK donated grenades, launchers, bullets and etc 70% doesnt work]. Based on the testimony of the North Korean defectors their army is already suffering from any source like malnourishment, tapeworms, diseases, faulty equipment [artillery exploded while testing]. While South Korean as we know they are NATO trained because of US and coordinated with NATO alliance. Have you all check Ukraine war? North Korea sent 12,000 troops to fight with russia but what happen? almost 2k defected from war and another 1k+ dead NK lack of battlefield awareness and they are prone to artillery attack. Some reports said that Ukraine located the encapments of North Korean troops and bombarded them with drones KIA are not reported.
4. Missiles
I am sure that most Filipino are not educated about nuclear Theory or allergic in the word "Nuclear" even the Nuclear powered Aircraft Carrier of US protested by low iq filipinos. My point is they think that who ever hold the nuclear power wins. Jesus, Nuclear power country can be easily defeated using Conventional warfare. If North Korea fires 1 or more Nuclear Missiles they are already destroyed in their nuclear silos. The North Korean Nuclear Silos are already pre-recorded target and monitored using sat map heat signature. If NK heat up their nuclear silos they are already dead. South Korea doesn't need Nuclear missiles to fight back because in all category from air superiority to logistics they already win.
Overall South Korean wins.