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!
Fastening Days has finished airing and it has 1 Episodes. It is also Known as: FASTENING DAYS, Fastening Days
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Top Anime Like Fastening Days [2026 List]
1. Super Kuma-san
A big studded bear that trudges with a drum and drum stick in his hand... This is Mr. Super Bear! While playing the drum and without any expression on his face, Mr. Bear rescued Maa-kun from a bank robber. One day, Maa-kun found "Mr. Super Bear" and a clown entertaining kids by performing for them. Who is this "Mr. Super Bear"...?
Super Kuma-san has finished airing and it has 1 Episodes. It is also Known as: スーパークマさん, Mr. Super Bear
