"The Devil Wears the Spring Bonnie Suit" is a fan-fiction involving Henry Emily's eldest daughter, Emilia, and the two sons of William Afton, Jonathan and Michael.

When Emilia is sent undercover as a detective to work as a nightguard for her younger sister's murder case, she crosses paths with two people she hadn't thought she'd be able to see again; Jonathan and Michael Afton.

Remembering the events from when she was younger that she worked so hard to block out, she goes into full-blown panic mode.

How was Michael Afton alive when she witnessed the Bite of 1983? When did Jonathan get back from the military school William had sent him to after the Bite?

More importantly, what will happen when old feelings towards Jonathan come back to smack her in the face?