The dream and the waking world collapse into each other without asking permission. Souya watches the seven rainbow heroes fight the stuffed bear UFO and knows he's supposed to recognize them, except the knowledge is locked behind amnesia that might not be an accident. The show doesn't waste time explaining what it is, it trusts you to chase the contradiction between what he remembers and what he's being told until the entire premise inverts.

Souya Kuroi is a high schooler who lost his memory about two weeks ago, along with his parents, in a strange accident. He is taken in by two odd guardians: Ginko, a lively maid in gothic lolita dress, and a huge cat-like creature called Sensei. His only memory is a nightmare of people with superpowers fighting an enormous dragon in the sky amid rainbow light. When a giant teddy bear UFO descends on cities worldwide, that nightmare tears into reality. Seven radiant heroes materialize to fight back, their powers blazing exactly as Souya saw them in his dreams. The maid then makes an impossible demand: hunt down these heroes and steal the source of their strength. Souya sets himself against the town's protectors, and the reason he fights lies buried in his lost memories, pulling him into a conflict on a galactic scale. Across twelve episodes, the series mixes mecha action and science fiction.