After I Transmigrated, the Male Lead Became My Dad’s Best Friend

I got transported into a post-apocalyptic novel and planned to be a disposable extra. But, unexpectedly, I ran into my dad. He no longer looked like a man in his forties at all, but like a young man in his twenties. Even more surprising, he had become best friends with the male lead. What kind of story will this strange combination bring about in the apocalypse? Will they fight side by side, or clash over their different ideals? And what role will I play in all this? Will I try to change the fate of the apocalypse, or go with the flow in this unusual web of relationships? It all slowly unfolds amid the dangers of the end of the world.