Amnesia Fic
From Super-wiki
Definition
In Amnesia Fic, one or more characters lose their memory. Generally, the plot will then be formed around the repercussions - how the character deals with it, how characters around them deal with it, the quest to retrieve the lost memories, or coming to terms with the loss.
It is often used in Wincest stories to raise issues of sexual attraction and incest, when Sam and Dean meet but at least one of them doesn't realize they are related.
4.17 It's a Terrible Life features an amnesia-based plot.
