They were both wrong. She knew that, and he would figure it out, eventually.
Winry is doing another all-nighter. She's been staying up late more frequently due to the war going on in the East. On the particularly rainy night, a soldier turns up at Rockbell Automail begging for an automail arm. It's the last person Winry had ever expected to see turn up at her door again: Roy Mustang.
The Planets provides examples of:
- Alternate Universe Fic: Conqueror of Shamballa never happened and Alphonse brought Ed back to Amestris, but at the cost of being sent to the other side of the Gate himself.
- Blood from the Mouth: Subverted. After installing Roy's automail arm, Winry notices that he's bleeding from the mouth. It turns out to be nothing serious. Roy just bit his tongue.
- Driven to Suicide: Roy hits his Despair Event Horizon after his trusted comrade and Implied Love Interest Riza dies. In his grief, he tries to commit Equivalent Exchange to get Alphonse back, but he's stopped by Ed. This is how he lost an arm
- Child Soldiers: Discussed when Winry monologues that one of the things she hates about Roy is that he drafted a twelve year old into the military, no matter how smart or mature for his age that Edward was.
- Dead Guy Junior: Winry tentatively names her new puppy "Den II", though she thinks about naming him "Roy" because his destructive nature brings to mind the alchemist.
- Died in Your Arms Tonight: It's mentioned that Riza died in Roy's arms.
- Elephant in the Living Room: Until chapter 5, Winry and Roy skirt around the issue of Roy having killed Winry's parents.
- Gender Flip: Den is mistakingly referred to as male. In canon, Den is a female dog.
- Heroic Sacrifice: Deconstructed with Riza. She traded her life for Roy's by taking shots aimed for him. Winry admits it's a heroic death from a woman who pledged her loyalty to protect Roy at all times, but it still makes her uncomfortable to think about and she wonders if Riza regretted it. The sacrifice also traumatized Roy.
- Hurt/Comfort Fic: With a strong emphasis on the "hurt" and very little "comfort". Roy turns up at Winry's house, bloody and missing an arm. She nurses him, but it's incredibly awkward because Winry hates Roy's guts and he's deeply ashamed of what he did to her family.
- Replacement Goldfish:
- Discussed and subverted. Roy thinks Winry is treating him as a replacement for Edward, and Winry wonders if he sees her as a replacement for Riza, but there's more to their complex relationship besides these passing similarities to pass loves.
- Winry adopts a puppy that looks a lot like Den. She hasn't decided on a name yet but tentatively names him "Den II".
- Snow Means Death: It starts snowing when Roy's health takes a turn for the worst. Subverted in that he doesn't die.
- Wham Line:
- In chapter two, Winry reads a newspaper and sees that Roy is MIA and presumed dead. That's not the Wham Line—the next one is: "Mustang's disappearance occurred shortly after the death of his trusted aide and second-in-command, Major Riza Hawkeye". It makes the reader wonder if Roy tried to resurrect Riza in his grief. It's later shown that he thought of it but ultimately didn't.
- By the end of chapter five, the reader understands why everyone wants to know where Ed is after Winry reads the headline "Fullmetal Alchemist named as a suspect in the likely death of General Roy Mustang, currently missing and last seen with Major Elric shortly after the latest attack on the border."