In a world where someone has achieved godhood, god has taken a more, direct aproach.

All around planet Earth, everyone sees an announcement:

This is god speaking here.I'm like really bored right now. So! Let me give you a shot at making it big. I'll be blowing up planet Earth in a while, so I'm gonna let you guys reincarnate on a planet of your choice. You'll have two choices, being a mortal, or a immortal system. Mortals, your goal is to reach immortality, systems, your goal is to obtain an immortal body.

This story follows the journey of a system and his mortal host.