I Want to Infect All of Humanity

I transmigrated into a game world and became the final boss, Miana. And the goal the System gave me was to infect all of humanity.

That's one seriously (incredibly) crazy (fun) goal!

Hey, you passing by, miss, come over and let me bite you. Just one bite! I picked the body-sculpting skill, so I promise you won't turn into an infected. Once I bite you, your measurements will instantly become the golden ratio.

Survivors, don't be afraid. It's not like I'm some kind of devil.