Cheerful Research Institute
Fan references connect the Institute to dream-incubation facilities and anomalous story forms. Its relationship to Daydream, Sekwang and the archive origin is debated. Sources here do not prove it created the record.
Sources & discussion
Cheerful Research Institute (S20)
Korean fan reference. Facilities and case history; origin claims remain contested.
Reddit / “Which came first?” (S21)
Reader theory. Archive and Institute causality hypothesis.
Fan guide only. Theories are reader interpretations, not canon. Contains spoilers through the captured chapter index.