When Seele and Bronya were at the Cocolia Orphanage, they used to watch fairy tales together in a huge toy box. In the memory of the two, the story in the fairy tale has become a precious memory. Even after Seele accepted the experiment as a quantum state, this memory still had no use to dissipate. In the second season of Dirac Sea Chamber, Seele was forced into a quantum state by the implantation of a static gemstone by Cocolia, but Seele didn't want to dissipate it. The two of them once again embarked on a beautiful fairy tale journey in their dreams, continuing the happy scene in the toy box.