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Spell Cycle Theory

Spoilers ahead: this article covers the full story.

Article contents
  1. Belief
  2. History
  3. References
“ Every year, hundreds of people die in the Dark City. And every year, hundreds more come to take their place. But, Sunny… this year, there were only four. Not four hundred, but just four people. Which means that the Bright Castle never got the chance to recoup its losses. What happens if that Spell Cycle theory that people have is true and five months from now, when the winter solstice comes, the same thing repeats itself? It means that a year from now, there will be maybe six hundred humans left in the Dark City. And two years from now… there will be only a dozen or two. It takes a lot of people to maintain the semblance of civilization we have going on here, Sunny. Once we pass the point of no return, it will all come crashing down. Every non-combatant will die. Every fighter who is not powerful enough will die. Eventually, only a few strongest ones will be left. Am I strong enough to be among those few? I'm not sure. And even if I am, who would want to live in a situation like that. ”

― Kai to Sunny,
Chapter 190 Point of No Return

Spell Cycle Theory states that the number of people sent to the Forgotten Shore by the Spell followed a certain cycle.[1]

Belief

People believed in the cyclic nature of Sleepers going to arrive on the Forgotten Shore during the winter solstice. It was expected that there would be a dozen, a few dozen after a year, and a hundred new faces arriving on the Forgotten Shore after that.[2]

History

Fifteen years ago, the Spell had sent seven people to the Forgotten Shore. The next year, it had been twice as much, and then more and more. Eventually, hundreds of Sleepers had been arriving in the Dark City after each winter solstice up until the year, when only four — Sunny, Nephis, Cassie, and Caster — had come. Three more had perished in the Labyrinth without ever reaching the cursed ruins.[1]

Because of that, the inhabitants of Bright Castle came up with a theory that the number of people sent to this region of the Dream Realm by the Spell followed a certain cycle. If they had been right, then at least fourteen Sleepers would have appeared somewhere in the Labyrinth on the day of the winter solstice. But, the Spell did not send anyone.[1]

Sunny believed that the four of them had never been meant to start a new cycle. He had always thought that they were meant to be the last. The last chance the Spell had given to the people of the Forgotten Shore.[1]

References

  1. ↑ 1.0 1.1 1.2 1.3 Chapter 311 The Last
  2. ↑ Chapter 190 Point of No Return
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Retrieved 2026-11-04 · Article version 1