Miyako's fears of interacting with others in public calls to mind the many instances of people suffering severe shyness in real life.
Miyako breaking down whilst admitting to Kanon and Koyori that she wasn't the person that they thought she was according to the rumors. However, it becomes touching when Kanon states that she was even better than what the rumors entailed.
The school play is about an angel who falls in love with a human girl but because of their lifespans, the girl declines her affections. The angel then embarks on a journey to become human to be with the girl...only to realize that she died by the time she made her way through the mountains. However, it later leads to Tears of Joy as the angel falls in love with the human girl's granddaughter, and when they died, the angel reunited with her first love.