Chapter one: Anarchy
You described it well, I think.
Chapter two: Lick
I'm intrigued as to how Sesshoumaru will fare in this world you've created. I'm also curious as to how the epidemic only affects those of-age. It brings to mind the Star Trek episode "Miri". An interesting concept, to be certain, that a civilization destroying plague could be triggered by the hormone release of puberty. I wonder if your disease is affected by the hormonal change, or if it's something only found in certain environs.
Chapter three: Pulse
Interesting. I'm very curious as to the inevitable meeting.
Chapter four: Jerk
You're setting up an intriguing world here.
Chapter five: Throb
Well, you have started something that could be a very thrilling piece! It's a shame it hasn't gotten more of a response - I do think you have a very interesting idea here. I certainly like how you're taking the prompts, and - for the most part - using the words in a non-sexual way.
Should you choose to continue writing in this world, I'd certainly like to read it!
Thank you for sharing, and happy writing!