Celestial Method
The Town with no Disk (1x12)
:
Nonoka suddenly finds herself returning to the day she arrived in Lake Kiriya, this time with the saucer nowhere to be seen above the city, like it was never there to begin with. Furthermore, she discovers none of her friends have any memories of Noel or the saucer, and Shione is nowhere to be found, later learning she moved away during elementary school. As Nonoka starts to doubt herself over whether Noel even existed in the first place, Shione appears before her, revealing that she has also retained her memories of Noel.