- Shuko is a Northern White-faced Owl, a species native to Northern Africa. Its ability to change its outward appearance when feeling threatened is real.
- Rio rides a Zündapp KS750 bike in Episode 3, something very remarkable as it was meant to be used with a sidecar and it is extremely hard to control without one.
- The Red Stapler: A year after being aired, Cuenca has seen a noticeable increase in Japanese tourism.
Trivia / Sound of the Sky