In an alternate reality, both Hyperdimension Forces and Daikaiju Knights managed to escape from both Darkaiju Conquerors and Kaotic Avengers. However, they ended up in the universe of Call of Duty: Vanguard instead of their own worlds.
(Inside the Nazi Base, Hermann Freisinger, the head of Project Phoenix, sees the footages of both Daikaiju Knights and Hyperdimension Network Heroes helping the Special Operation Task Force.)
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Freisinger: (growls) Like having those heretics in my way wasn't enough, I now have to deal with aliens, cyborgs, metahumans, armored heroes and even monsters...
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Richter: (comes in) And those monsters are not ordinary monsters. They're... kaijus.
Freisinger: (confused) Kaijus?
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Steiner: They are ancient monsters who live before humanity.
Freisinger: Like the dinosaurs?
Richter: Except they're not extinct.
Freisinger: What do you mean?
Steiner: There are tales of a certain kaiju who once destroyed everything in his path, and the same monster saved the planet itself from threats like Muto, King Ghidorah and even Mechagodzilla.
Richter: And there was one who protected an island known as "Skull Island" from some creatures named Skullcrawlers.
Freisinger: You can't be serious.
Steiner: And the existence of these monsters are studied by a group known as Monarch, led by Ishiro Serizawa.
Freisinger: Geez, things are getting worse than I had anticipated. Prepare the ground forces. I want those heretics dead, no exceptions.
