Apocalypse: The Twin Duo

I was just playing an apocalypse game. Who knew I'd get struck by lightning and pulled into it? Ye Yan and Ye Yu can only say they're pretty helpless. Still, having a clever strategist like Xitong around is nice, though you really are way too carefree! And there's a secondary System? Games we've played before? Haha, could our luck get any better... Yeah, right! Why are there so many restrictions? We can level up by fighting monsters and earn crystal cores. Why does this feel like playing a game? Oh, right. It is a game... But the Zombie Emperor showed up way too soon! What? We're the ones responsible? What do you mean? Well, I guess this is the only way... Anyway, this is a game, but it's also another reality. Welcome to the end of the world!