Completed
8 episodes / Studio Colorido
The anime
About FASTENING DAYS
Youji and Kei live with their foster parent Anna in a near-future town while secretly acting as its superhero defenders. Together with robot bear Oscar, they use homemade high-tech machinery to protect local residents from danger.
Fastening Days 1 and 2 each have one episode; Fastening Days 3 and 4 each have three.
- Format
- ONA
- Status
- Completed
- First aired
- October 30, 2014
- Final episode
- December 19, 2019
- Episodes
- 8
- Episode length
- 5 minutes
The cast
Featured characters
Behind the characters
Voice actors
Behind the anime