Nayeon was a girl with Asperger's syndrome, she was cold and hardly spoke, she had no friends nor was she interested in having them. *

Jeongyeon was an autistic girl who had no friends, she always used headphones that canceled the noise from the surroundings.*

one day Nayeon was watching a video about penguins and saw Jeongyeon also watching the video, confused, she turned away to watch the video alone.