At their hideout, Dante makes it clear that Rosé will be her next host. However the problems they are having is Gluttony is lonely without Lust and that Wrath desperately wants to use the stone to revive Sloth, which forces Envy to beat him up. Back at Central Command, Izumi Curtis is having difficulty battling Frank Archer due to his automail armaments being too strong for her transmutations as his backup arrives. Archer offers her to join him, stating the State Military will eventually take over the land, something that Izumi flatly refuses. Izumi can barely make another shield before her condition affects her. As Archer is ready to finish her off, Maria Ross and Denny Brosh arrive with their own backup to support Izumi. Ed arrives at Dante's headquarters and notices Rosé dancing. In Resembool, Sheska realizes and mentions to Winry that the actions of the Homunculi have in fact been intended to keep reckless people from dangerously creating the Philosopher's Stone and using it for themselves, which is the origin of the rumors of how the Stone was too dangerous to complete. After dancing with Rosé, Ed discovers that Lyra brought her there when she shows up with Rosé's baby.

Dante tries to pretend to be Lyra and to cover up the details on how she knew about this place. However, Ed is now aware that she's actually Dante, explaining the mistakes she made in her faked death: the transmutation circle which seals up the Homunculus was found at her house, along with the bones from the human Greed was modeled after so Greed couldn't do anything. Furthermore, Ed is now aware the Philosopher's Stone can be used by one to transfer souls between each body, which allows them to live on for centuries, and is the main reason why Dante killed the real Lyra, whose soul was inside her old body. To prove his point, Ed summons a transmuted spear, which Dante quickly destroys, and verifies that she has seen The Gate, which allows her to transmute without a circle, something the real Lyra is incapable of. She confirms that the residents in the ancient city had been killed for the purpose to create the stone, though Hohenheim was the one to make the stone for her. She then reveals that her mission is to protect humanity from foolishly using the stone, which is why they spread the rumors about the stone and to also steal it if someone were to complete one. Dante also reveals that she will make love to Ed once she takes over Rosé's body. Gluttony then comes in looking for Lust. After Ed convinces him that Wrath killed Lust, Gluttony leaves, depressed, and Ed continues to attack Dante. Dodging her attack, he slices part of her dress with his automail sword, confirming that the mutilated skin on Lyra's body is a sign that Dante can't transfer her soul between bodies forever.

Dante reveals that Equivalent Exchange is a lie, stating that not everyone gets the same thing from what's been lost, and mentions that while numerous people apply to the State Alchemy exams, only few had passed. Using her transmuted Stone snake to grab Rosé's baby by stating not everyone is equal, she continues to lecture Ed and he ignores her and saves the baby. However, a transmutation circle on the baby sends him to the other side of The Gate in the parallel world. Ed wakes up and finds himself in another body and discovers his father. Once he confirms that it is the Ed from his world, Hohenheim tells him to run, as it is the day the zeppelins are dropping bombs in London during World War I.