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 didnt 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. In the dream, Bronya is a knight, she is a traveler, they have launched a wonderful adventure.