Meteora hypothesizes that characters possessing special powers interfering in the real world could cause the world to be destroyed. Meteora realizes that her Creator loved everyone who plays the video game she stars in, and vows to stop The Great Destruction to protect the people her Creator loved. Meanwhile, Alicetaria February from "Alicetaria of the Scarlet" joins the Military Uniform Princess.

Souta deals with his feelings of guilt and regret for not being able to save Setsuna Shimazaki and vows to stop Altair. Altair is different from ordinary Creations: Altair's powers grow with each new spin-off story made about her, but Meteora's powers are limited to her character description. Meteora comes up with a plan to revise their character descriptions and get the support of the viewers.

Hikayu Hoshikawa, a character from the dating sim video game Starry Sky Milky Way, appears in front of the group. Hikayu doesn't possess any abilities for battle but is still required to participate in the Elimination Chamber Festival since she's a Creation. Oonishi, Hikayu's creator, comes up with an idea to help her. Meanwhile, a new Creation joins Altair's side...

The Creators, exhausted after the tight deadlines, and the Creations, who have been executing the plan, get a moment to relax before the real battle starts. The team rallies their spirits for the upcoming battle, each member recalling their own reasons for fighting: To save the world, to return home, to face the past; Selesia and the others enter the Bird Cage, where they lie in wait for Altair.

The battle over the fate of the real world and the fate of the story worlds finally begins! Selesia is able to get back into Vogelchevalier again after winning the acceptance of the audience, and faces off against Altair. However, her new powers don't work against Altair, and she struggles in the battle. Meanwhile, Blitz goes to pay someone a visit to tie up some loose ends.

Magane pays Souta a visit while he watches Selesia's battle and tells him that he is just like her because they both use others to satisfy their own desires, laying the groundwork for her plans to make things "more interesting." Meanwhile, Alicetaria, Blitz, and Shou turn against Altair in the Bird Cage, and join Selesia's side instead. However, Altair still has one final trick up her sleeve!

Selesia and the others encounter the final Creation, who turns out to be Charon, the hero from Elemental Symphony of Vogelchevalier, the same story Selesia comes from! While Selesia is overjoyed at the reunion, Charon is sick of the endless fighting in his world, and joins Altair, who is trying to destroy the world. Selesia refuses to fight against Charon, and makes up her mind in a big decision.

The Elimination Chamber Festival ends successfully, and everything draws to a close. As the Creations prepare to go back to their own worlds, they spend their last few moments enjoying the real world. On the day of parting, the Creations return to where they each belong, each carrying their own thoughts in their hearts.