Medical Interest, Nothing More an Eleceed Kayden x Kartein fic

Kartein had decided on a plan of attack, er well, plan of health. It was a stupid plan, not that Kartein would say it out loud, but a stupid plan for a stupid man seemed fitting.
So began Kartein's mission to expose himself to Kayden.
Wait, no.

- Kartein takes on the great challenge of healing Kayden, and somehow gains a relationship from it.