Morpheus469
Hanahaki disease, or Anthisi tapal as it was known scientifically, was a genetic rarity. It was rare to appear and even rarer to survive.
It was by no means something unknown to Odysseus, his grandmother had apparently had it in her younger years, she'd warned him of it in one of few times he'd seen her- though he had stopped seeing her after mentioning the disease to his mother. She'd dismissed it as a myth, nothing more.
She'd been wrong, he knew that now... Were there a better way to find out his mother was wrong than to literally experience it? There were many Odysseus could think of many, but it seemed the fates had decided this was fit.
Well, at least he knew that who he had it for was worth the likely long painful death it'd bring him. Many would tell him to just "Get the surgery", but how could he explain that wasn't truly an option for him? Explain that he didn't remember almost anything from before his first year of high school? How could he, or anyone really, explain to his best friend(Because that's what they were) that he didn't remember him? How could he explain he didn't remember who he was?
He couldn't. And he wouldn't. He caught it early enough on, he could buy himself more time.