* A short promotional film for YKK Fastening. 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? * Note: Sadly I do not have English subtitles for "Fastening Days 1", they are not available on Youtube. But there are other groups that releases those. So just grab their release of it. More info: Fastening Days 1: https://anidb.net/anime/10907 Fastening Days 2: https://anidb.net/anime/12309 Fastening Days 3: https://anidb.net/anime/13427 Fastening Days 4: https://anidb.net/anime/15303 Fastening Days 1 - Episode 1 (JP): https://www.youtube.com/watch?v=6UhQ0QK8bGY Fastening Days 1 - Episode 1 (EN): https://www.youtube.com/watch?v=xVjbjEMVkvg Fastening Days 2 - Episode 1 (JP): https://www.youtube.com/watch?v=SFNJROE_pRw Fastening Days 2 - Episode 1 (EN): https://www.youtube.com/watch?v=OeFvsIU-xqI Fastening Days 3 - Episode 1 (JP): https://www.youtube.com/watch?v=AfvqiiVosi0 Fastening Days 3 - Episode 1 (EN): https://www.youtube.com/watch?v=T5xV4YTcBkQ Fastening Days 3 - Episode 2 (JP): https://www.youtube.com/watch?v=8-A5Sxutt5E Fastening Days 3 - Episode 2 (EN): https://www.youtube.com/watch?v=oes_6OrqlAE Fastening Days 3 - Episode 3 (JP): https://www.youtube.com/watch?v=xSifJpzSvIE Fastening Days 3 - Episode 3 (EN): https://www.youtube.com/watch?v=xVkIeQSm7Eg Fastening Days 4 - Episode 1 (JP): https://www.youtube.com/watch?v=4naaQixZSfM Fastening Days 4 - Episode 1 (EN): https://www.youtube.com/watch?v=E9atLnXLKME Fastening Days 4 - Episode 2 (JP): https://www.youtube.com/watch?v=Ejx0wa9gETM Fastening Days 4 - Episode 2 (EN): https://www.youtube.com/watch?v=q-yTgnRNHNo Fastening Days 4 - Episode 3 (JP): https://www.youtube.com/watch?v=I4sUrgYTD0M Fastening Days 4 - Episode 3 (EN): https://www.youtube.com/watch?v=8juwkET_B8U