Doomsday + Group Portrait + Two Male Protagonists + Power Upgrade Stream + Female Channel, No Need for System Cheats

If you want to watch something like "It's the end of the world, of course you have to have sex with the male god!" Book. It's doomsday + preferably a group portrait + two male protagonists (it can also be pure friendship) + a superpower upgrade flow, without those golden fingers. Natural disaster zombies can survive.