Fastening Days

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Alternative Titles



Type: ONA
Episodes: 1
Status: Finished Airing
Aired: Oct 30, 2014
Producers: FILMONY
Licensors: None found, add some
Studios: Studio Colorido
Source: Original
Demographic: KidsKids
Duration: 15 min.
Rating: G - All Ages


Score: 6.441 (scored by 24352,435 users)
1 indicates a weighted score.
Ranked: #63912
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #6641
Members: 5,569
Favorites: 3

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Yoji and Kei, a boy and girl, live in a town in the not-so-distant future with their foster parent, Anna. But these seemingly ordinary children have a secret hidden even from their unsuspecting mother.

Yoji and Kei are superhero defenders of their town! With a flap of their capes, the two of them and their robot bear sidekick, Oscar, protect the citizens in their town with their handmade high-tech machinery. But from what menace? And will our little heroes be able to overcome the crisis about to threaten the town's peaceful everyday serenity?

Check out this utterly electrifying near-future animation to find out!

(Source: Official website)


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Related Anime

Characters & Voice Actors


Shiraishi, Ryouko


Ono, Fuyuka


Sadaoka, Sayuri


Ishida, Hiroyasu
Matsuoka, Hiroki
Sound Director
Tanaka, Junichi
Script, Original Creator
Theme Song Performance


Opening Theme

No opening themes have been added to this title. Help improve our database by adding an opening theme here.

Ending Theme

"Hurly Burly" by Perfume

Jun 13, 2017
MJynx251 (All reviews)

The art style looks basically pastel colors, and since this anime short is for everyone of any age, it's also appropriate.

I've watched a lot of anime (probably not as much as some/most), but I can safely say that this was a great experience.

It's different. It's magical.

I mean, it's such a cute concept involving zippers and family!

The short is worth approximately 10 minutes of your time if you want something a little new to your diet of anime.

EPISODE 02: So now there's an Episode 02 for this "series".

I will be keeping the score of 10 for Fastening Days.

The issues I have read more
May 18, 2015
ssclanker (All reviews)
Having just recently been introduced to the anime world. All I see are high school animes and more high school animes. And then some more. And after that I see shows like Zankyou No Terror which also shows high school students capable of destroying the world (mind you they were pretty old, but they still went to a high school). And then I see this show which I thought I would give a try since it was only one 11 min long episode. Considering that most of the YouTube videos that I watch are also approx. 10 mins long, I figured I might as well read more
May 14, 2020
ReapersCrow (All reviews)
Don't watch this expected a show with a deep plot or something that revolutionary. It is a simple series of short animations films presented by YKK. What is YKK? In short, they are a manufacturing group based in Japan that's known to as the world's largest zipper manufacturer. That's right, this is is a series of shorts meant to promote their zipper products. The products are even listed on their official site along with which episode the product is used in.

There are currently 7 episodes. Fastening Days 1, 2, 3, and 4. For some reason Fastening Days 3 and 4 is divided into read more

Recent News

Recent Forum Discussion

Poll: Fastening Days Episode 1 Discussion
Stark700 - Oct 30, 2014
30 replies by SuperWarrior2012 »»
Apr 4, 9:24 AM
Separated entries?
svefnpurka - Sep 10, 2017
10 replies by anime-prime »»
Mar 29, 12:59 PM